Light up your ride, get noticed, and (bonus!) be more visible at night. Clear, flexible waterproof tubing has 20 diamond-bright micro LEDs inside. Weave it through the spokes and turn your wheel into a glowing, spinning circle of light. 7-foot strand is plenty for a wheel 20" and over; snip off any excess with scissors. Comes with mounting ties and battery pack. 3 AA batteries (not included) last about 45 hrs. Sold as a set of 2, one for each wheel.