Activate the star crystal wand by pressing button on the handle, once for each light function. Dimensions: Length = 15 in. Width = 4.5 in. at the widest part of the star LEDs: 4 Green, 4 Red, 3 Blue LED Functions: Fast Rotating Flash, Faster Rotating Flash, Super Fast Rotating Flash, Fast Regular Flash. Batteries: Includes 4 AG13 Batteries