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Grab your Promo Code for our Amazon Top 10 Best Selling STEM Kit

Build & rebuild robotic creations with the Electric Motors Catalyst STEM kit

Everything you need in a single box

Kid-tested, parent-approved for ages 8+

50+ real parts including 10 challenge cards, wood, electric motors, & hardware

Perfect gift for aspiring engineers & tinkerers

Build doodling robots, power electric model cars & add our motors to your favorite lego sets

How to build a robot kit