The Amazing Magnetic FridgiGears Deluxe Light Show Puzzle Gear Edition lets kids make creations light up & glow in the dark. Each gear is a puzzle that a child puts together to create a moving work of art. A rotating magnetic black light is included. The motorized picture frame gear powers all 20 gears with an easy "tap on/tap off" function. Included are over 103 black-light responsive magnetic fridgi puzzle pieces.