STEM play on the run! A 60 piece marble run set with interlocking track pieces and ten colorful glass marbles. The illustrated eight page manual in...
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A buildable race car model includes a working four speed manual transmission with reverse and neutral, a rear wheel torque differential, shock abso...
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Build your own robotic vacuum that actually cleans up dust and crumbs from your desk. Dusty uses mechanical sensors to avoid falling off edges or g...
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Build your own mechanical dragon coin bank that makes saving money a fun, hands-on science project. This STEM building kit teaches kids how simple ...
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