Showing 13–24 of 158 results

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Stem Model * | Engine Diy Hall Effect Sensor 3 Coil Magnetic Levitation Motor Brushless Motor Science Toy GiftStem Model * | Engine Diy Hall Effect Sensor 3 Coil Magnetic Levitation Motor Brushless Motor Science Toy Gift
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Solar Magnetic Levitation Motor

Stem Model * | Engine Diy Hall Effect Sensor 3 Coil Magnetic Levitation Motor Brushless Motor Science Toy Gift

$41.65
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Stem Model * | Engine Diy Hot Air Stirling Engine Model With Led Generator Physics Experiment Toy Enginediy
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Electric Generator Model

Stem Model * | Engine Diy Hot Air Stirling Engine Model With Led Generator Physics Experiment Toy Enginediy

$21.51
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Stem Model * | Engine Diy Hot Air Stirling Engine With Solid Metal Construction Education Toy Electricity Power Generator Motor Model ( T16-03 )Stem Model * | Engine Diy Hot Air Stirling Engine With Solid Metal Construction Education Toy Electricity Power Generator Motor Model ( T16-03 )
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Electric Generator Model

Stem Model * | Engine Diy Hot Air Stirling Engine With Solid Metal Construction Education Toy Electricity Power Generator Motor Model ( T16-03 )

$51.55
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Stem Model * | Engine Diy Hydraulic Press Machine Hydraulic Press Lab Model EnginediyStem Model * | Engine Diy Hydraulic Press Machine Hydraulic Press Lab Model Enginediy
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Experiment Model

Stem Model * | Engine Diy Hydraulic Press Machine Hydraulic Press Lab Model Enginediy

$76.67
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Stem Model * | Engine Diy Integrated Tesla Coil Driver Board Half-Bridge Drsstc Tesla Music Coil Drive ModuleStem Model * | Engine Diy Integrated Tesla Coil Driver Board Half-Bridge Drsstc Tesla Music Coil Drive Module
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Stem Model

Stem Model * | Engine Diy Integrated Tesla Coil Driver Board Half-Bridge Drsstc Tesla Music Coil Drive Module

$52.72
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Stem Model * | Engine Diy Large Flywheel For Nitro Engine Generator Model
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Mini Generator

Stem Model * | Engine Diy Large Flywheel For Nitro Engine Generator Model

$8.49
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Stem Model * | Engine Diy Large Flywheel For Nitro Engine Generator Model
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Mini Generator

Stem Model * | Engine Diy Large Flywheel For Nitro Engine Generator Model

$8.78
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Stem Model * | Engine Diy Level 15 Low Voltage Motor One Button Start Methanol Engine Electric Generator EnginediyStem Model * | Engine Diy Level 15 Low Voltage Motor One Button Start Methanol Engine Electric Generator Enginediy
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Electric Generator Model

Stem Model * | Engine Diy Level 15 Low Voltage Motor One Button Start Methanol Engine Electric Generator Enginediy

$83.91
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Stem Model * | Engine Diy Level 15 Nitro Engine Generator Model With Cooling FanStem Model * | Engine Diy Level 15 Nitro Engine Generator Model With Cooling Fan
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Mini Generator

Stem Model * | Engine Diy Level 15 Nitro Engine Generator Model With Cooling Fan

$88.34
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Stem Model * | Engine Diy Metal 2 Cylinder Brushless Flat Electromagnetic Engine Model Technology Toys For 1/10Rc Rc Cars ShipsStem Model * | Engine Diy Metal 2 Cylinder Brushless Flat Electromagnetic Engine Model Technology Toys For 1/10Rc Rc Cars Ships
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Electromagnetic Motor

Stem Model * | Engine Diy Metal 2 Cylinder Brushless Flat Electromagnetic Engine Model Technology Toys For 1/10Rc Rc Cars Ships

$43.74
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Stem Model * | Engine Diy Metal 4 Stroke Gasoline Engine Diesel Engine Model Scientific Physics Teaching Experiment ToolStem Model * | Engine Diy Metal 4 Stroke Gasoline Engine Diesel Engine Model Scientific Physics Teaching Experiment Tool
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Experiment Model

Stem Model * | Engine Diy Metal 4 Stroke Gasoline Engine Diesel Engine Model Scientific Physics Teaching Experiment Tool

$58.58
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Stem Model * | Engine Diy Metal Mini V Type Double-Cylinder V2 Electromagnetic Engine Model Operable Engine Physics Science Experiment Toy (6-12V Supply Voltage)Stem Model * | Engine Diy Metal Mini V Type Double-Cylinder V2 Electromagnetic Engine Model Operable Engine Physics Science Experiment Toy (6-12V Supply Voltage)
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Electromagnetic Motor

Stem Model * | Engine Diy Metal Mini V Type Double-Cylinder V2 Electromagnetic Engine Model Operable Engine Physics Science Experiment Toy (6-12V Supply Voltage)

$56.63