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46% off
500+Pcs DIY V8 Engine Model Metal assembly kit Decoration Teaching Mechanical car engine science physics toy gift 500+Pcs DIY V8 Engine Model Metal assembly kit Decoration Teaching Mechanical car engine science physics toy gift

500+Pcs DIY V8 Engine Model Metal assembly kit Decoration Teaching Mechanical car engine science physics toy gift

$4643.71$8599.47

55% off
Stirling Engine Generator Model Metal External Combustion Steam Engine Physics Science Experiment Engine Model Toy Stirling Engine Generator Model Metal External Combustion Steam Engine Physics Science Experiment Engine Model Toy

Stirling Engine Generator Model Metal External Combustion Steam Engine Physics Science Experiment Engine Model Toy

$29.65$65.88

55% off
Shaftless Pump Thruster High Power Brushless Motor Model Adjustable Speed Transparent Physics Teaching Demo Science Toy Decor Shaftless Pump Thruster High Power Brushless Motor Model Adjustable Speed Transparent Physics Teaching Demo Science Toy Decor

Shaftless Pump Thruster High Power Brushless Motor Model Adjustable Speed Transparent Physics Teaching Demo Science Toy Decor

$157.50$350.00

32% off
Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy 1 Set Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy 1 Set

Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy 1 Set

$17.41$25.60

18% off
DIY Damping Device Model Science Toys for Kids Physics Experimental Tool Kit Children Educational Toys G258 DIY Damping Device Model Science Toys for Kids Physics Experimental Tool Kit Children Educational Toys G258

DIY Damping Device Model Science Toys for Kids Physics Experimental Tool Kit Children Educational Toys G258

$27.45$33.47

20% off
Circuit Experiment Building Blocks Toy Assembly Science Experiment Set Physics Enlightenment Wholesale DIY Science Education Ass Circuit Experiment Building Blocks Toy Assembly Science Experiment Set Physics Enlightenment Wholesale DIY Science Education Ass

Circuit Experiment Building Blocks Toy Assembly Science Experiment Set Physics Enlightenment Wholesale DIY Science Education Ass

$119.40$149.25

14 sold
57% off
GL003 Vertical Steam Boiler Model for Steam Engine Model RC Cars & Ships Physics Experiment Toy GL003 Vertical Steam Boiler Model for Steam Engine Model RC Cars & Ships Physics Experiment Toy

GL003 Vertical Steam Boiler Model for Steam Engine Model RC Cars & Ships Physics Experiment Toy

$79.97$185.98

Mini Steam Helicopter Steam Engine Model Kit Diy Assembly Physics Experiment Toy Collection Gift

Mini Steam Helicopter Steam Engine Model Kit Diy Assembly Physics Experiment Toy Collection Gift

$2830.00$2830.00

25% off
Sterling engine generator model engine miniature double-cylinder scientific and physical experimental mechanical equipment toy Sterling engine generator model engine miniature double-cylinder scientific and physical experimental mechanical equipment toy

Sterling engine generator model engine miniature double-cylinder scientific and physical experimental mechanical equipment toy

$539.53$719.38

50% off
Tensegrity Sculpture Anti-Gravity Building Blocks, Physics Balance DIY Assembled Toy Desktop Decor Tensegrity Sculpture Anti-Gravity Building Blocks, Physics Balance DIY Assembled Toy Desktop Decor

Tensegrity Sculpture Anti-Gravity Building Blocks, Physics Balance DIY Assembled Toy Desktop Decor

$43.52$87.04

1 sold
65% off
Hot Air Stirling Engine Model External Combustion Engine Model Physics Science Educational Toy Desktop Decoration Hot Air Stirling Engine Model External Combustion Engine Model Physics Science Educational Toy Desktop Decoration

Hot Air Stirling Engine Model External Combustion Engine Model Physics Science Educational Toy Desktop Decoration

$122.85$350.99

51% off
Turbojet Engine Gasolines kerosine Internal Combustion Mini Model Engine Physics Experiment Toy for Adults Turbojet Engine Gasolines kerosine Internal Combustion Mini Model Engine Physics Experiment Toy for Adults

Turbojet Engine Gasolines kerosine Internal Combustion Mini Model Engine Physics Experiment Toy for Adults

$1578.47$3221.36

29% off
1 Set Wooden Washing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy 1 Set Wooden Washing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

1 Set Wooden Washing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

$22.85$32.18

50% off
DIY Wooden Washing Machine Physical Science Model STEM Experiment Kit for Kids Birthday Gift School Science Fair DIY Wooden Washing Machine Physical Science Model STEM Experiment Kit for Kids Birthday Gift School Science Fair

DIY Wooden Washing Machine Physical Science Model STEM Experiment Kit for Kids Birthday Gift School Science Fair

$7.95$16.06

58% off
Diy Ultrasonic Suspension Electronic Production Model Kit Standing Wave Controller Scientific Physics Experimental Model Diy Ultrasonic Suspension Electronic Production Model Kit Standing Wave Controller Scientific Physics Experimental Model

Diy Ultrasonic Suspension Electronic Production Model Kit Standing Wave Controller Scientific Physics Experimental Model

$19.32$45.99

Educational DIY Scientific Experiment Gate Model Wood Puzzle Science Project Kit for Boys Girls Age 8 and Up Educational DIY Scientific Experiment Gate Model Wood Puzzle Science Project Kit for Boys Girls Age 8 and Up

Educational DIY Scientific Experiment Gate Model Wood Puzzle Science Project Kit for Boys Girls Age 8 and Up

$3.91$3.91

Hot Air Stirling Engine Model Heat Generator Physical Model Toy Collection Home office Collectible Gift Hot Air Stirling Engine Model Heat Generator Physical Model Toy Collection Home office Collectible Gift

Hot Air Stirling Engine Model Heat Generator Physical Model Toy Collection Home office Collectible Gift

$47.49$47.49

51% off
DIY 6 Coil Electromagnetic Cyclotron Electromagnetic Coil Accelerator Physics Experiment Model Desktop Ornament Toy Sport DIY 6 Coil Electromagnetic Cyclotron Electromagnetic Coil Accelerator Physics Experiment Model Desktop Ornament Toy Sport

DIY 6 Coil Electromagnetic Cyclotron Electromagnetic Coil Accelerator Physics Experiment Model Desktop Ornament Toy Sport

$76.44$155.99

1Set Electric Escalator Science Kit Kids Stem Project Educational Physics Experiment Playset Electronic Teaching Material 1Set Electric Escalator Science Kit Kids Stem Project Educational Physics Experiment Playset Electronic Teaching Material

1Set Electric Escalator Science Kit Kids Stem Project Educational Physics Experiment Playset Electronic Teaching Material

$82.85$82.85

52% off
Eight Coil Brushless Motor 12V High Power Brushless Motor 8 Level Brushless Internal Rotor Motor Physics Experiment Model Toy Eight Coil Brushless Motor 12V High Power Brushless Motor 8 Level Brushless Internal Rotor Motor Physics Experiment Model Toy

Eight Coil Brushless Motor 12V High Power Brushless Motor 8 Level Brushless Internal Rotor Motor Physics Experiment Model Toy

$188.64$392.99

50% off
DIY Wooden Newton's Cradle STEM Science Experiment Kit Physics Learning Model for Kids Creative Educational Playtime DIY Wooden Newton's Cradle STEM Science Experiment Kit Physics Learning Model for Kids Creative Educational Playtime

DIY Wooden Newton's Cradle STEM Science Experiment Kit Physics Learning Model for Kids Creative Educational Playtime

$6.83$13.80

55% off
Small Brushless Motor Model Wheel Motor Low Power High Speed Technology Ornament Physical Experiment Model Toy Small Brushless Motor Model Wheel Motor Low Power High Speed Technology Ornament Physical Experiment Model Toy

Small Brushless Motor Model Wheel Motor Low Power High Speed Technology Ornament Physical Experiment Model Toy

$22.50$49.99

2 sold
DIY Experiment Assembly Model Kit Toys Traffic Light Handmade Physical Scientific Training Interactive Toy Gifts for Children DIY Experiment Assembly Model Kit Toys Traffic Light Handmade Physical Scientific Training Interactive Toy Gifts for Children

DIY Experiment Assembly Model Kit Toys Traffic Light Handmade Physical Scientific Training Interactive Toy Gifts for Children

$4.09$4.09

Hot Air Sterling Engine Model, Physics Science Experiment Toy, School DIY Steam Heat Education Model Toy for Children Hot Air Sterling Engine Model, Physics Science Experiment Toy, School DIY Steam Heat Education Model Toy for Children

Hot Air Sterling Engine Model, Physics Science Experiment Toy, School DIY Steam Heat Education Model Toy for Children

$34.56$34.56

1 Set Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy 1 Set Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

1 Set Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

$33.56$33.56

49% off
A71Z Mini Hot Air Stirling Engine Motor Model Stream Power Physics Experiment Model Educational Science Gift For Children A71Z Mini Hot Air Stirling Engine Motor Model Stream Power Physics Experiment Model Educational Science Gift For Children

A71Z Mini Hot Air Stirling Engine Motor Model Stream Power Physics Experiment Model Educational Science Gift For Children

$23.02$45.14

50% off
New！1 Set Wooden Winnowing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy New！1 Set Wooden Winnowing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

New！1 Set Wooden Winnowing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

$48.22$96.44

64% off
Stirling Wart Reciprocating Steam Engine Generator Model Generator with Light Bulb DIY Physics Experiment Toy Stirling Wart Reciprocating Steam Engine Generator Model Generator with Light Bulb DIY Physics Experiment Toy

Stirling Wart Reciprocating Steam Engine Generator Model Generator with Light Bulb DIY Physics Experiment Toy

$84.87$235.75

62% off
Physics Fluid Mechanics Waterwheel Model for Kids Science Fair Projects and Classroom Hands on Learning Physics Fluid Mechanics Waterwheel Model for Kids Science Fair Projects and Classroom Hands on Learning

Physics Fluid Mechanics Waterwheel Model for Kids Science Fair Projects and Classroom Hands on Learning

$49.70$130.80

84% off
V8 Engine Model Kit that Runs, Visible Mini Car Motor Building Blocks Set for Adults, Compatible with, STEM Physical Science Ed V8 Engine Model Kit that Runs, Visible Mini Car Motor Building Blocks Set for Adults, Compatible with, STEM Physical Science Ed

V8 Engine Model Kit that Runs, Visible Mini Car Motor Building Blocks Set for Adults, Compatible with, STEM Physical Science Ed

$63.54$397.13

43% off
Stirling Engine Motor Model Physics Teaching Aids Classroom Learning Tool for Science Education Stirling Engine Motor Model Physics Teaching Aids Classroom Learning Tool for Science Education

Stirling Engine Motor Model Physics Teaching Aids Classroom Learning Tool for Science Education

$207.86$364.67

Bell whistles For Live Steam Engine Model Learning Education Physics Experiment Toy SW-C1 | Model 159895 Bell whistles For Live Steam Engine Model Learning Education Physics Experiment Toy SW-C1 | Model 159895

Bell whistles For Live Steam Engine Model Learning Education Physics Experiment Toy SW-C1 | Model 159895

$332.56$332.56

Diesel Engine Model Home School 4 Strokes Engine Working Principle Steam Engine Metal Physics Science Experiment Toy Boys Girls Diesel Engine Model Home School 4 Strokes Engine Working Principle Steam Engine Metal Physics Science Experiment Toy Boys Girls

Diesel Engine Model Home School 4 Strokes Engine Working Principle Steam Engine Metal Physics Science Experiment Toy Boys Girls

$52.11$52.11

Powerable Balance Metal Dual Cylinder Stirling Engine Generator External Combustion Engine Model Men Physics Experiment Toy

Powerable Balance Metal Dual Cylinder Stirling Engine Generator External Combustion Engine Model Men Physics Experiment Toy

$2021.62$2021.62

50% off
Aircraft Stirling Engine Model External Combustion Engine Micro Generator Steam Engine Aerospace Korean Model Mini Birthday Gift Aircraft Stirling Engine Model External Combustion Engine Micro Generator Steam Engine Aerospace Korean Model Mini Birthday Gift

Aircraft Stirling Engine Model External Combustion Engine Micro Generator Steam Engine Aerospace Korean Model Mini Birthday Gift

$74.99$149.99

Adjustable Speed Stirling Engine Model Science Experiment Engine Toy with Horizontal Flywheel Physics Steam Power Toy

Adjustable Speed Stirling Engine Model Science Experiment Engine Toy with Horizontal Flywheel Physics Steam Power Toy

$1119.86$1119.86

46% off
500+Pcs DIY V8 Engine Model Metal assembly kit Decoration Teaching Mechanical car engine science physics toy gift 500+Pcs DIY V8 Engine Model Metal assembly kit Decoration Teaching Mechanical car engine science physics toy gift

500+Pcs DIY V8 Engine Model Metal assembly kit Decoration Teaching Mechanical car engine science physics toy gift

$4643.71 $8599.47

Categories: Toys & Hobbies, Building & Construction Toys

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55% off
Stirling Engine Generator Model Metal External Combustion Steam Engine Physics Science Experiment Engine Model Toy Stirling Engine Generator Model Metal External Combustion Steam Engine Physics Science Experiment Engine Model Toy

Stirling Engine Generator Model Metal External Combustion Steam Engine Physics Science Experiment Engine Model Toy

$29.65 $65.88

Categories: Toys & Hobbies, Building & Construction Toys

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55% off
Shaftless Pump Thruster High Power Brushless Motor Model Adjustable Speed Transparent Physics Teaching Demo Science Toy Decor Shaftless Pump Thruster High Power Brushless Motor Model Adjustable Speed Transparent Physics Teaching Demo Science Toy Decor

Shaftless Pump Thruster High Power Brushless Motor Model Adjustable Speed Transparent Physics Teaching Demo Science Toy Decor

$157.50 $350.00

Categories: Toys & Hobbies, Building & Construction Toys

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32% off
Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy 1 Set Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy 1 Set

Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy 1 Set

$17.41 $25.60

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18% off
DIY Damping Device Model Science Toys for Kids Physics Experimental Tool Kit Children Educational Toys G258 DIY Damping Device Model Science Toys for Kids Physics Experimental Tool Kit Children Educational Toys G258

DIY Damping Device Model Science Toys for Kids Physics Experimental Tool Kit Children Educational Toys G258

$27.45 $33.47

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20% off
Circuit Experiment Building Blocks Toy Assembly Science Experiment Set Physics Enlightenment Wholesale DIY Science Education Ass Circuit Experiment Building Blocks Toy Assembly Science Experiment Set Physics Enlightenment Wholesale DIY Science Education Ass

Circuit Experiment Building Blocks Toy Assembly Science Experiment Set Physics Enlightenment Wholesale DIY Science Education Ass

$119.40 $149.25

14 sold

Categories: Toys & Hobbies, Building & Construction Toys

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57% off
GL003 Vertical Steam Boiler Model for Steam Engine Model RC Cars & Ships Physics Experiment Toy GL003 Vertical Steam Boiler Model for Steam Engine Model RC Cars & Ships Physics Experiment Toy

GL003 Vertical Steam Boiler Model for Steam Engine Model RC Cars & Ships Physics Experiment Toy

$79.97 $185.98

Categories: Toys & Hobbies, Building & Construction Toys

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Mini Steam Helicopter Steam Engine Model Kit Diy Assembly Physics Experiment Toy Collection Gift

Mini Steam Helicopter Steam Engine Model Kit Diy Assembly Physics Experiment Toy Collection Gift

$2830.00 $2830.00

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25% off
Sterling engine generator model engine miniature double-cylinder scientific and physical experimental mechanical equipment toy Sterling engine generator model engine miniature double-cylinder scientific and physical experimental mechanical equipment toy

Sterling engine generator model engine miniature double-cylinder scientific and physical experimental mechanical equipment toy

$539.53 $719.38

Categories: Toys & Hobbies, Building & Construction Toys

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50% off
Tensegrity Sculpture Anti-Gravity Building Blocks, Physics Balance DIY Assembled Toy Desktop Decor Tensegrity Sculpture Anti-Gravity Building Blocks, Physics Balance DIY Assembled Toy Desktop Decor

Tensegrity Sculpture Anti-Gravity Building Blocks, Physics Balance DIY Assembled Toy Desktop Decor

$43.52 $87.04

1 sold

Categories: Toys & Hobbies, Building & Construction Toys

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65% off
Hot Air Stirling Engine Model External Combustion Engine Model Physics Science Educational Toy Desktop Decoration Hot Air Stirling Engine Model External Combustion Engine Model Physics Science Educational Toy Desktop Decoration

Hot Air Stirling Engine Model External Combustion Engine Model Physics Science Educational Toy Desktop Decoration

$122.85 $350.99

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51% off
Turbojet Engine Gasolines kerosine Internal Combustion Mini Model Engine Physics Experiment Toy for Adults Turbojet Engine Gasolines kerosine Internal Combustion Mini Model Engine Physics Experiment Toy for Adults

Turbojet Engine Gasolines kerosine Internal Combustion Mini Model Engine Physics Experiment Toy for Adults

$1578.47 $3221.36

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29% off
1 Set Wooden Washing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy 1 Set Wooden Washing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

1 Set Wooden Washing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

$22.85 $32.18

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50% off
DIY Wooden Washing Machine Physical Science Model STEM Experiment Kit for Kids Birthday Gift School Science Fair DIY Wooden Washing Machine Physical Science Model STEM Experiment Kit for Kids Birthday Gift School Science Fair

DIY Wooden Washing Machine Physical Science Model STEM Experiment Kit for Kids Birthday Gift School Science Fair

$7.95 $16.06

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58% off
Diy Ultrasonic Suspension Electronic Production Model Kit Standing Wave Controller Scientific Physics Experimental Model Diy Ultrasonic Suspension Electronic Production Model Kit Standing Wave Controller Scientific Physics Experimental Model

Diy Ultrasonic Suspension Electronic Production Model Kit Standing Wave Controller Scientific Physics Experimental Model

$19.32 $45.99

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Educational DIY Scientific Experiment Gate Model Wood Puzzle Science Project Kit for Boys Girls Age 8 and Up Educational DIY Scientific Experiment Gate Model Wood Puzzle Science Project Kit for Boys Girls Age 8 and Up

Educational DIY Scientific Experiment Gate Model Wood Puzzle Science Project Kit for Boys Girls Age 8 and Up

$3.91 $3.91

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Hot Air Stirling Engine Model Heat Generator Physical Model Toy Collection Home office Collectible Gift Hot Air Stirling Engine Model Heat Generator Physical Model Toy Collection Home office Collectible Gift

Hot Air Stirling Engine Model Heat Generator Physical Model Toy Collection Home office Collectible Gift

$47.49 $47.49

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51% off
DIY 6 Coil Electromagnetic Cyclotron Electromagnetic Coil Accelerator Physics Experiment Model Desktop Ornament Toy Sport DIY 6 Coil Electromagnetic Cyclotron Electromagnetic Coil Accelerator Physics Experiment Model Desktop Ornament Toy Sport

DIY 6 Coil Electromagnetic Cyclotron Electromagnetic Coil Accelerator Physics Experiment Model Desktop Ornament Toy Sport

$76.44 $155.99

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1Set Electric Escalator Science Kit Kids Stem Project Educational Physics Experiment Playset Electronic Teaching Material 1Set Electric Escalator Science Kit Kids Stem Project Educational Physics Experiment Playset Electronic Teaching Material

1Set Electric Escalator Science Kit Kids Stem Project Educational Physics Experiment Playset Electronic Teaching Material

$82.85 $82.85

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52% off
Eight Coil Brushless Motor 12V High Power Brushless Motor 8 Level Brushless Internal Rotor Motor Physics Experiment Model Toy Eight Coil Brushless Motor 12V High Power Brushless Motor 8 Level Brushless Internal Rotor Motor Physics Experiment Model Toy

Eight Coil Brushless Motor 12V High Power Brushless Motor 8 Level Brushless Internal Rotor Motor Physics Experiment Model Toy

$188.64 $392.99

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50% off
DIY Wooden Newton's Cradle STEM Science Experiment Kit Physics Learning Model for Kids Creative Educational Playtime DIY Wooden Newton's Cradle STEM Science Experiment Kit Physics Learning Model for Kids Creative Educational Playtime

DIY Wooden Newton's Cradle STEM Science Experiment Kit Physics Learning Model for Kids Creative Educational Playtime

$6.83 $13.80

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55% off
Small Brushless Motor Model Wheel Motor Low Power High Speed Technology Ornament Physical Experiment Model Toy Small Brushless Motor Model Wheel Motor Low Power High Speed Technology Ornament Physical Experiment Model Toy

Small Brushless Motor Model Wheel Motor Low Power High Speed Technology Ornament Physical Experiment Model Toy

$22.50 $49.99

2 sold

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DIY Experiment Assembly Model Kit Toys Traffic Light Handmade Physical Scientific Training Interactive Toy Gifts for Children DIY Experiment Assembly Model Kit Toys Traffic Light Handmade Physical Scientific Training Interactive Toy Gifts for Children

DIY Experiment Assembly Model Kit Toys Traffic Light Handmade Physical Scientific Training Interactive Toy Gifts for Children

$4.09 $4.09

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Hot Air Sterling Engine Model, Physics Science Experiment Toy, School DIY Steam Heat Education Model Toy for Children Hot Air Sterling Engine Model, Physics Science Experiment Toy, School DIY Steam Heat Education Model Toy for Children

Hot Air Sterling Engine Model, Physics Science Experiment Toy, School DIY Steam Heat Education Model Toy for Children

$34.56 $34.56

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1 Set Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy 1 Set Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

1 Set Wooden Film Projector DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

$33.56 $33.56

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49% off
A71Z Mini Hot Air Stirling Engine Motor Model Stream Power Physics Experiment Model Educational Science Gift For Children A71Z Mini Hot Air Stirling Engine Motor Model Stream Power Physics Experiment Model Educational Science Gift For Children

A71Z Mini Hot Air Stirling Engine Motor Model Stream Power Physics Experiment Model Educational Science Gift For Children

$23.02 $45.14

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50% off
New！1 Set Wooden Winnowing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy New！1 Set Wooden Winnowing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

New！1 Set Wooden Winnowing Machine DIY Science Experiment Physical Model STEM Kit Handmade Assembly Craft Kids Educational Toy

$48.22 $96.44

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64% off
Stirling Wart Reciprocating Steam Engine Generator Model Generator with Light Bulb DIY Physics Experiment Toy Stirling Wart Reciprocating Steam Engine Generator Model Generator with Light Bulb DIY Physics Experiment Toy

Stirling Wart Reciprocating Steam Engine Generator Model Generator with Light Bulb DIY Physics Experiment Toy

$84.87 $235.75

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62% off
Physics Fluid Mechanics Waterwheel Model for Kids Science Fair Projects and Classroom Hands on Learning Physics Fluid Mechanics Waterwheel Model for Kids Science Fair Projects and Classroom Hands on Learning

Physics Fluid Mechanics Waterwheel Model for Kids Science Fair Projects and Classroom Hands on Learning

$49.70 $130.80

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84% off
V8 Engine Model Kit that Runs, Visible Mini Car Motor Building Blocks Set for Adults, Compatible with, STEM Physical Science Ed V8 Engine Model Kit that Runs, Visible Mini Car Motor Building Blocks Set for Adults, Compatible with, STEM Physical Science Ed

V8 Engine Model Kit that Runs, Visible Mini Car Motor Building Blocks Set for Adults, Compatible with, STEM Physical Science Ed

$63.54 $397.13

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43% off
Stirling Engine Motor Model Physics Teaching Aids Classroom Learning Tool for Science Education Stirling Engine Motor Model Physics Teaching Aids Classroom Learning Tool for Science Education

Stirling Engine Motor Model Physics Teaching Aids Classroom Learning Tool for Science Education

$207.86 $364.67

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Bell whistles For Live Steam Engine Model Learning Education Physics Experiment Toy SW-C1 | Model 159895 Bell whistles For Live Steam Engine Model Learning Education Physics Experiment Toy SW-C1 | Model 159895

Bell whistles For Live Steam Engine Model Learning Education Physics Experiment Toy SW-C1 | Model 159895

$332.56 $332.56

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Diesel Engine Model Home School 4 Strokes Engine Working Principle Steam Engine Metal Physics Science Experiment Toy Boys Girls Diesel Engine Model Home School 4 Strokes Engine Working Principle Steam Engine Metal Physics Science Experiment Toy Boys Girls

Diesel Engine Model Home School 4 Strokes Engine Working Principle Steam Engine Metal Physics Science Experiment Toy Boys Girls

$52.11 $52.11

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Powerable Balance Metal Dual Cylinder Stirling Engine Generator External Combustion Engine Model Men Physics Experiment Toy

Powerable Balance Metal Dual Cylinder Stirling Engine Generator External Combustion Engine Model Men Physics Experiment Toy

$2021.62 $2021.62

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50% off
Aircraft Stirling Engine Model External Combustion Engine Micro Generator Steam Engine Aerospace Korean Model Mini Birthday Gift Aircraft Stirling Engine Model External Combustion Engine Micro Generator Steam Engine Aerospace Korean Model Mini Birthday Gift

Aircraft Stirling Engine Model External Combustion Engine Micro Generator Steam Engine Aerospace Korean Model Mini Birthday Gift

$74.99 $149.99

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Adjustable Speed Stirling Engine Model Science Experiment Engine Toy with Horizontal Flywheel Physics Steam Power Toy

Adjustable Speed Stirling Engine Model Science Experiment Engine Toy with Horizontal Flywheel Physics Steam Power Toy

$1119.86 $1119.86

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