Model: The crane car comes with a metal 8-axle car frame and superstructure. It has metal counter weights that can be mounted on the crane. It has power pickups, 3 motors, and a special version digital decoder for remote control with the 6021 Control Unit. The superstructure with the boom can be rotated on a prototypical crown gear wheel. The boom can be raised and lowered with pulley and double block and tackle. The metal main hook can be raised and lowered with pulley and double block and tackle. 4 support arms can be swung out manually and can be fixed with spindles on the bases included with the crane car train. Length of the superstructure with boom and counterweights is a maximum of 34.0 cm / 13-3/8". Radius range of the hook is up to 21.0 cm / 8-1/4". On curves, the boom can swing to the side prototypically during transport. There is a crane tender car for supporting the boom, for storing the hooks and the support bases (stacks of ties). There is a counterweight car with special equipment for the transport and assembly of the counterweights. Total length over the buffers 55.0 cm / 21-5/8".