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Mini Hot Air Stirling Engine Single Cylinder Engine Motor Model STEM Educational Toy - Enginediy |
$20.99 |
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$20.99 |
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Mendocino Motor Solar Magnetic Levitation Motor Engine Science Toy |
$39.99 |
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$39.99 |
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1:10 HSP 94122 Drift RC Car Chassis Frame Kit with Engine Parts and Remote Control - Compatible with Toyan Single Cylinder Engine |
$179.99 |
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$179.99 |
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Mini Vertical Mendocino Motor Solar Magnetic Levitating Motor Engine Science Toy - Enginediy |
$49.99 |
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$49.99 |
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TECHING 160pcs DIY Build Your Robot Kit Robotic Engine Assembly Kit Educational Toy DIY Gift |
$199.99 |
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$199.99 |
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Microcosm M89 Mini Steam Boiler Steam Engine Model Gift Collection DIY Stirling Engine - Enginediy |
$129.99 |
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$129.99 |
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STARK SSTC Music Tesla Coil Integrated Arc Extinguishine Tesla Teaching Model High-tech Toy |
$129.99 |
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$129.99 |
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