Showing 1–12 of 158 results

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Stem Model * | Engine Diy 220V 100W Tesla Rotating Stand Egg Single-Phase Ac Motor Rotating Magnetic Field Scientific Experiment Educational ToyStem Model * | Engine Diy 220V 100W Tesla Rotating Stand Egg Single-Phase Ac Motor Rotating Magnetic Field Scientific Experiment Educational Toy
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Stem Model

Stem Model * | Engine Diy 220V 100W Tesla Rotating Stand Egg Single-Phase Ac Motor Rotating Magnetic Field Scientific Experiment Educational Toy

$80.34
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Stem Model * | Engine Diy 2Pcs Tws Dual Channel Bluetooth Tesla Music Coil Speaker Esound Plasma Singing Loudspeaker Experimenting Device Teaching Tool Desktop ToyStem Model * | Engine Diy 2Pcs Tws Dual Channel Bluetooth Tesla Music Coil Speaker Esound Plasma Singing Loudspeaker Experimenting Device Teaching Tool Desktop Toy
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Stem Model

Stem Model * | Engine Diy 2Pcs Tws Dual Channel Bluetooth Tesla Music Coil Speaker Esound Plasma Singing Loudspeaker Experimenting Device Teaching Tool Desktop Toy

$69.97
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Stem Model * | Engine Diy 4 Cylinder Stirling Engine Generator V-Shape External Combustion Engine ModelStem Model * | Engine Diy 4 Cylinder Stirling Engine Generator V-Shape External Combustion Engine Model
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Mini Generator

Stem Model * | Engine Diy 4 Cylinder Stirling Engine Generator V-Shape External Combustion Engine Model

$82.13
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Stem Model * | Engine Diy 8-Coil Circular Electromagnetic Accelerator Scientific Experiment Tool Diy Physics Toy With High Magnetic BeadsStem Model * | Engine Diy 8-Coil Circular Electromagnetic Accelerator Scientific Experiment Tool Diy Physics Toy With High Magnetic Beads
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Electromagnetic Motor

Stem Model * | Engine Diy 8-Coil Circular Electromagnetic Accelerator Scientific Experiment Tool Diy Physics Toy With High Magnetic Beads

$83.69
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Stem Model * | Engine Diy Belt For Nitro Engine Generator Model
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Mini Generator

Stem Model * | Engine Diy Belt For Nitro Engine Generator Model

$7.44
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Stem Model * | Engine Diy Belt For Nitro Engine Generator Model
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Mini Generator

Stem Model * | Engine Diy Belt For Nitro Engine Generator Model

$7.44
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Stem Model * | Engine Diy Bluetooth Music Tesla Coil Artificial Lighting Generator Ac-E106Stem Model * | Engine Diy Bluetooth Music Tesla Coil Artificial Lighting Generator Ac-E106
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Experiment Model

Stem Model * | Engine Diy Bluetooth Music Tesla Coil Artificial Lighting Generator Ac-E106

$18.80
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Stem Model * | Engine Diy Bluetooth Music Tesla Coil Plasma Speaker Scientific Experiment Model Educational ToyStem Model * | Engine Diy Bluetooth Music Tesla Coil Plasma Speaker Scientific Experiment Model Educational Toy
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Experiment Model

Stem Model * | Engine Diy Bluetooth Music Tesla Coil Plasma Speaker Scientific Experiment Model Educational Toy

$35.96
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Stem Model * | Engine Diy Bluetooth Tesla Music Coil Speaker Esound Plasma Singing Loudspeaker Experimenting Device Teaching Tool Desktop ToyStem Model * | Engine Diy Bluetooth Tesla Music Coil Speaker Esound Plasma Singing Loudspeaker Experimenting Device Teaching Tool Desktop Toy
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Stem Model

Stem Model * | Engine Diy Bluetooth Tesla Music Coil Speaker Esound Plasma Singing Loudspeaker Experimenting Device Teaching Tool Desktop Toy

$35.96
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Stem Model * | Engine Diy Bluetooth Wireless Mini Tesla Music Coil Speaker Plasma Singing Loudspeaker Experimenting Device Teaching Tool Desktop ToyStem Model * | Engine Diy Bluetooth Wireless Mini Tesla Music Coil Speaker Plasma Singing Loudspeaker Experimenting Device Teaching Tool Desktop Toy
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Experiment Model

Stem Model * | Engine Diy Bluetooth Wireless Mini Tesla Music Coil Speaker Plasma Singing Loudspeaker Experimenting Device Teaching Tool Desktop Toy

$34.27
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Stem Model * | Engine Diy Car Manual Transmission Drive Model 5 Forward Gears Plus R Reverse Gear With Clutch Differential Motor 3D Plastic Assembly ModelStem Model * | Engine Diy Car Manual Transmission Drive Model 5 Forward Gears Plus R Reverse Gear With Clutch Differential Motor 3D Plastic Assembly Model
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Experiment Model

Stem Model * | Engine Diy Car Manual Transmission Drive Model 5 Forward Gears Plus R Reverse Gear With Clutch Differential Motor 3D Plastic Assembly Model

$33.19
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Stem Model * | Engine Diy Gasoline Engine Model Four-Stroke Single Cylinder Physical Experimental EquipmentStem Model * | Engine Diy Gasoline Engine Model Four-Stroke Single Cylinder Physical Experimental Equipment
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Experiment Model

Stem Model * | Engine Diy Gasoline Engine Model Four-Stroke Single Cylinder Physical Experimental Equipment

$26.03