Build a motorized robot, race car, and countdown timer — all that run without any batteries or electrical power!

Using mainsprings, gears, ratchets, linkages, and over 130 pieces, the 3-in-1 models teach the inner workings of spring-powered devices like clockwork toys and clocks. Mainsprings store energy and discharge to move the robot forward or power the race car, or slowly tick down seconds with a 6 minute countdown timer.

Ages 6+

WARNING: CHOKING HAZARD-SMALL PARTS - NOT FOR CHILDREN UNDER 3YRS