To activate the Star Light Color Changing Saber Sword press the button located the handle. There is only one light function, the LEDs slowly change color. 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: Length: 22.75 in. Width: 2.37 in. LED Colors: Blue, Red, Green Batteries: Star Light Color Changing Saber Swords include 3 replaceable AG13 Batteries