SpringBots: 3-in-1 Spring-Powered Robots zebras six new items

six new items

Defy the laws of grab-ity with Newton

About Great Pretenders: Great Pretender's mission is to design and produce products that inspire families to engage in creative

Designed especially for small hands

SpringBots: 3-in-1 Spring-Powered Robots zebras six new itemsBuild 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 the