78-pieces Assorted Gears Kit for DIY Robotics Momentary Type Powering from Mini-USB Port

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78-pieces Assorted Gears Kit for DIY Robotics Momentary Type Powering from Mini-USB PortThis is a 78 piece Gears Assorted Kit for Do It Yourself Robotics and Household Repair. The Gear Package contains a spindle, single double crown gear, pulley, rack, bevel gear, copper gear, bushings, axles, wheels, rubber bands, and other accessories for DIY toy cars robots motors. These gears can be used for a variety of tasks, including toy repair, DIY science and small prototypes, product design, and mechanical modeling. The majority of gear has a