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Construct ten out-of-this-world machines and learn about the physics of levers and linkages. A battery-powered motor box powers the models. Includes A 48-page manual guides your model building and experiments with step-by-step illustrated instructions & 138 pcs. Make a bipedal alien robot model that walks on two legs. In addition, build models of a pumpjack, swinging device, hopping alien frog-bot, roving dino-bot with reciprocating arm, and rolling alien dragon-bot. Ages 6+
Dimensions: L / w / h : 25.5 X 6.5 X 28.0 cm
Gender: Boy & Girl