Wonderball Wireless Remote Control Robotic Kit

Wonderball is an RF controlled wonder. It spins on a dime and moves at blazing speeds. Movement: Two (2) tracks driven by two (2) DC motor. Control: Infrared light source and light detector.. Dimensions: 6 9/32" diameter. Requires: one (1) 9V and six (6) "AA" batteries - not included. No Soldering Required!