19 Piece Brackitz Driver Expansion Set
The Brackitz Expansion Set includes all the parts you need for driving - wheels, axles, hubs, rubber-band drivetrains, and directions for ten driving machines - from a spinning gyro-copter to a space rover to a wind-up blaster. Engineers of all ages can design and build machines that spin, explore space, fly through the air, or drive crazy fast. No driver's license required!
Includes 19 pieces