To activate the LED's in your Super Bounce Ball, just throw it down on a hard surface. Bright lights will flash for about 15 seconds, then shut off automatically. Toys play a crucial part in development of a child. Toys as simple as wooden blocks or numbered puzzle, develops cognitive and physical skills. Complex puzzles, remote control cars, bubble guns helps learn and analyse cause effects and spatial relationships. Babies tend to play more and more with such toys and make themselves happy. Children's attitude towards their toys nurtures them big way. Specifications: . Diameter: 4 inches. LED Colors: 1 Red 1 Blue. Ball Colors: Blue, Yellow, Pink Purple