Commodity Material:Metallic iron and plastic Produce packaging: 24.5*4*18cm Product Size：15*7.5*3.5cm/14*6.2*4.5cm/14*7*4.5cm Product acessories: nickel-plated iron,Screws, tires, assembly drawings, including assembly tools Hands-on brain exercise to achieve through self-assembly, improve intelligence and ability Tool set included Contains 83 metal or plastic building pieces. Plastic accessories color random！！