This Light-up LED Hanging dolphin hangs from a beaded spiral with 3 mini dangling dolphins attached. Hangs with a 10 Foot Clear wire. Comes with an oval battery pack that requires 3 AAA batteries (not included). Simply insert the batteries and push the button on the battery pack to turn on and push again to turn off. The large Hanging dolphin is made out of a transparent acrylic and measures approximately 4.5″ Long x 2.5″ Wide.