$25 to $50

Meet Space Bot, the intergalactic sibling of Robbie the Robot! Explore 50 programmable actions with a remote, or control this cool cosmic bot with ...

Welcome to the fascinating world of mechanical engineering! Make 8 robotic animal characters including: a unicorn, sea otter, fox, bear, baby llama...

Explore hydraulics, pneumatics, and robotics with your very own giant hydraulic hand! Using over 200 plastic pieces and piston tubes filled with wa...

Beep. Boop. Who said robots aren't flexible? Get creative and make your own colorful, crazy robots. The new, flexible, extendable magnetic bars add...

Experience the future of transportation with RoboRails! This compact robot uses a fast-moving internal gyroscope and clever ball-bearing weights to...

Build robots and explore engineering with SMARTMAX Roboflex Plus Create! This 20-piece set features flexible, extendable magnetic bars that let you...

How cool is it that the mainspring stores energy, then converts it to motion? Discover the physics of potential and kinetic energy and the inner wo...

The power of wind makes them go - and you'll have fun building 6 awesome bots that move without any batteries at all. Easy, snap-together assembly ...