To activate your LED center piece, slide the button on the bottom of the base. Fibers & base will slowly transition from color to color through the rainbow. 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: Size: Small Fiber Strand Height: 4.0 in. Width: 5.75 in. Base Height: 1.50 in. Base Width: 1.75 in. LED Color: Rainbow Base Color: Clear