The car set has an mfx+ digital decoder and sound functions. The car set has the Surrounding Sound of hammering, Surrounding Sound 1 of abrasive cutting, Surrounding Sound 2 of a compressor, and Surrounding Sound 3 of a warning horn. The superstructure with the boom on a proto-typical crown gear can be rotated. The boom can be raised and lowered by means of a 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. The crane car has a metal 8-axle car frame and superstructure. It has metal counterweights that can be mounted on the crane. The maximum length of the superstructure with boom and counterweights is 34 cm / 13-3/8“. The radius range of the hook is up to 21 cm / 8-1/4”. On curves, the boom can swing to the side prototypically during transport. The crane tender car is for supporting the boom and for storing the hooks and the support bases (stacks of ties). The counterweight car has special equipment for the transport and assembly of the counterweights. Lifting equipment for lifting objects with a maximum weight of 250 grams / 8.82 ounces is included with the model. This model is being delivered with a numbered certificate of authenticity. Total length over the buffers 55 cm / 21-5/8“.