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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
Letter by letter
he's at Hogwarts
High-energy games
Countless play options – Kids can choose their woodland adventure: teaching a hedgehog to read with an owl
soaring machine and walking robot can all be set in motion with the included hand-powered wind generator
Springbots: 3-in-1 Spring-powered Machines Travel Letter by letterBuild a motorized robot, race car, and countdown timer, all that run without any batteries or electrical power! The secret behind these fascinating machines is a power source called a mainspring, a spiral shaped spring that stores up energy when wound up by hand, and then converts that stored energy back into motion when it discharges. The mainspring inside the robot turns gears which enable it to march forward on two legs. The race car zooms across
US$ 123.95
US$ 107.95
US$ 115.95