3V Crank Generation Creative Physic Dynamo Hand Generator DIY Science Experiment

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3V Crank Generation Creative Physic Dynamo Hand Generator DIY Science Experiment:
$2.66

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Material: ABS PlasticSize: about 40*40*55mmHandle: 10*60mmWeight: app43gPackage Include: 1PCS × Hand Generator

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3V Crank Generation Creative Physic Dynamo Hand Generator DIY Science Experiment:
$2.66