Brightz, Ltd. Wheel Brightz LED Bicycle Accessory Light (2-Pack Bundle 2 Tires), Color Morphing Your light kit includes: <ul class="a-unordered-list a-vertical"> <span class="a-text-bold">TWO</span> strings of 20 microLEDs in 7FT of clear, waterproof tubing, with battery packs (includes on/off switch) Tubing end cap (x2) 6 mounting ties to secure light string (x2) Instructions Requires 3 AA batteries (3 per light) - not included 48+ hour of glow Works with almost all bike wheels 20&#034; and over