For ages 8+ years. Assemble three fantastic robots with this kit! One robot detects objects using infra red rays, the wake-up robot is sensitive to light and the third robot is operated by any TV remote control. A separate circuit and body are supplied for each robot. Includes over 20 pieces. Switch, motor, gear, motor housing and body included. Requires 2 "AA" batteries, not included. Measures 5" x 5".