Using Robotic theory, this 4-in-1 motorized robot kit has a simple easy to assemble design that will spark the imagination of the creative builders. The kit can be transformed into one of the four exciting modes; 6 legged Cricket, Grand-rolling Beast, Motorized Trailer and the Bobblehead Robot. Each mode will showcase its own unique form of movement. Transforming between each mode is very easy with the guided instructional manual. Tools you may need: diagonal cutter, screwdriver and 1 x AA battery. Approximate 32 pcs.