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Build a gear box for robots or where a gear reduction or gearing change is needed. Axles connects to 2 wheels for the Tug-of War activity. It includes a long threaded rod axle for attachment to wheels (not included). The assembly lends itself to forward and backward motion with both wheels being driven by the same gear box.
The kit includes a pre-punched U-shaped bracket, motor, axles, gears, washers and instructions. 2.5"W x 6.75" L x 1.70" H. NOTE: Wheels not included. You must enlarge holes in the gears.