Gears! Gears! Gears!® TreadMobiles
Gears, meet treads! Engineer your own twisting, turning creations with this 101-piece STEM building set’s colorful moving gears, then add extra fun with attachable rubber treads. Turn your creations into tanks, conveyor belts, and more! Follow along with included builds, or design your own creation. Works with all Gears! sets.