The Mould King Railcar Rotary Dumper building block set brings a detailed industrial unloading system directly to your home. With 2,830 building blocks, you can construct a fully functional wagon tipper station with a two-tier structure. The model features a motorized rotation mechanism that turns freight cars 360 degrees. A train motor as well as M and L motors, combined with two battery packs and two remote controls, ensure powerful movements. Authentic industrial details such as warning stripes, safety grilles, and an operator's cabin complete this demanding technical project.