Model: Crane car with 8-axle metal frame and superstructure. Metal counter weights that can be mounted on the crane. Electrical pickup, 3 motors and special version digital decoder for remote control with the 6021 Control Unit. Superstructure with boom can be rotated on a prototypical crown gear. Boom can be raised and lowered by means of pulley and double block and tackle. Metal main hook can be raised and lowered by means of pulley and double block and tackle. Four outrigger support arms can be swung out manually and can be fixed in placed on the bases included with the crane set by means of spindle levelers. Maximum length of the superstructure with boom and counterweights is 34 cm / 13-3/8*. Maximum working radius of the hook is 21 cm / 8-1/4*. The crane boom swings to the side prototypically on curves during transport. Crane boom car supports the boom and provides a rest position for the crane hooks and the support bases (stacked ties). Counterweight car with special equipment for the transport and installation of the counterweights. Total length over buffers 55.0 cm / 21-5/8*.