4in1 motorized robot kit Using Robotic theory this 4in1 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 Grandrolling 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 piece Tip : Careful assembly is required cleaning up of each plastic part (cut / trim) is strongly recommended after it is removed from the sprue assembly. Form fitted assembly no glue required steps can be reversed for easy troubleshooting.