Total length: 155mm Total weight: 105g (w/ out batteries) Body material: ABS resin Gearbox, motor and reverse switch included. 2 possible gear ratios coupled with 4 different strides let you choose 8 different speeds. A screwdriver for the assembly is provided. Requires one R04/AAA/UM4 battery (sold separately). Continuous running time with Alkaline battery, 2 hours.All models are supplied un-assembled and unpainted, in their retail box.