Tank Tracked Vehicle Chassis Robotics Kit from Tamiya. It's for very experienced model builders. Kit is a chassis and engine portion for a military tank. Plastic orange road and idler wheels. Light black plastic tracks. Pre-cut wood chassis. Motor runs on two AA batteries (not included), which lie in a battery case. Gearbox runs on either normal or high speed. Grease included for lubrication of gears. Hex wrench and small phillips screws included. Pictorial instructions. Kit includes One Tank Tracked Vehicle Chassis Kit. Kit requires assembly, Small Phillips Screwdriver, Modeling Knife, Sprue Cutters, Two AA Batteries. SPECIFICATIONS: Wood Chassis: Length: 6" (15.5cm).. Width: 2-1/4" (5.9cm).. Height: 1/4" (6mm).. Keep out of reach of small children. Contains small parts. Instructions and box language written in Japanese and English.