Science meets art, math, and computer programming in sophisticated 3-D animated light shows. The Hypnocube is a 4" cube with 64 LEDs that flash on and off, constantly changing colors, speeds, and patterns. Everything is randomized, and each sequence runs for a half-hour without repeating. Arrives ready to use -- just plug it in and turn it on -- and the LEDs will last for years. Ages 12 and up.