This is a Track and Wheel Set from Tamiya"s Robotics and Construction Series. FEATURES: Allowing for a large degree of adjustability and creativity in design, the Track and Wheel Set offers three different lengths of tracks to choose from. Sprocket wheels, idler wheels and road wheels are all included. Use with a variety of Tamiya Construction and Robotics projects. Orange plastic wheels are attached to sprue trees. Flexible one-piece plastic tracks. Includes pictorial instructions. INCLUDES: One Track and Wheel Set. REQUIRES: Assembly Phillips Screwdriver Side Cutters Hobby Knife sdw 1/22/02 ir/kh