Construct ten out-of-this-world machines and learn about the physics of levers and linkages. A battery-powered motor box powers the models. Make a creepy slithering alien snake-bot model, an alien insectoid-bot, an alien raptor model, a grabber claw, a bipedal alien robot model, a pumpjack, a swinging device, a hopping alien frog-bot, a roving dino-bot with reciprocating arm and a rolling alien dragon-bot. This kit includes 40 page step-by-step instructions. For ages 6 and up.
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