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Thames & Kosmos Springbot Spring Powered Machines

$29.99

Harness the power of potential energy, no batteries needed! Kids can build a motorized robot, race car, and countdown timer, all of which run using the power of a mainspring - a spiral-shaped spring that stores energy as it's wound up and then converts that energy into motion as it unwinds. While building, kids will learn how everyday spring-powered machines work. Assembly is easy and requires no glue or tools.

Recommended for ages 6+