This kit consists of sproket wheels, wheel hub adaptors, rubber tracks, screws and nuts. All the key parts are made of plastic. By putting all the parts together, hobbyists can develope a robotic crawler base. ......
This full metal kit consists of metal tracks, drive wheels and driven wheels. They are used for hobbyists to develop a heavy duty robotic crawler base and can be selected according to the needs.......
This kit is made for hobbyists to develop a robotic crawler base. It make it work, hobbyists should know how to add power transmitting accessories, such as DC motors and gears. ......