BANBERRY DESIGNS LED Starburst Hanging Window Decoration Color Changing Night Light - LED Window Light - Batteries Included - Clear Acrylic Starburst is 4" Dia. COLOR CHANGING LED: lights change colors inside clear acrylic butterfly figure. Colors cycle smoothly red green and blue. SIZE: 11" cord hangs from battery pack. Starburst is approx. 4" dia. BATTERIES INCLUDED: Requires 2-CR2032 batteries (included, plus bonus batteries) On/Off buttons - touch activated. USE: Suction cup on back attaches to any smooth surface. Hang from a window in a room, patio, porch, door or mirror in a bedroom or bathroom. UNIQUE GIFT IDEA: Birthday gift for a kids room goes great with a star theme decor.