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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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ENJOMOR Vintage 4-Blade Heat Powered Thermal Stove Fan Stirling Engine Physics Science Experiment Toy |
$149.99 |
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$149.99 |
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V8 Engine Model Kit that Works - Build Your Own V8 Engine - V8 Engine Building Kit |
$149.99 |
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$149.99 |
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Labs Demonstration Motor Generator Activity Model AC/DC Generator Demo Kit for Student |
$119.99 |
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$239.98 |
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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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Stirling Engine Kit Tractor Vacuum Engine Motor Model for Gift Collection - Enginediy |
$199.99 |
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$199.99 |
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Metal Steam Turbine Engine JT-II Desktop Engine Model - Enginediy |
$109.99 |
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$109.99 |
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3D Puzzle Model Kit Mechanical Bull Metal Games DIY Assembly Jigsaw Crafts Creative Gift - 1087PCS |
$129.99 |
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$129.99 |
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Teching Engine Assembly Kit Full Metal Galileo Pendulum Clock Engine Building Kit Toy Gift |
$139.99 |
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$139.99 |
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