Light up your bike with one easy bundle pack! Get 2 Wheel Brightz and 1 Cosmic Brightz to light up your ride! Wheel Brightz use 20 Micro LED lights to create a ring of brilliant color that is sure to turn heads and grab attention wherever you go. Length of Tubing and String – 7 feet. Type of batteries – 3 AA (per light, not included) Battery Life – 48 hours. Tubing and string can be cut to size. Works with almost all bike wheels 20” and over. Waterproof.