2-Pack: Bicycle Wheel LED LightsGreat for all lighting conditions, these colorful, eye catching LED lights create a ring of color as you pedal your bike Features: Fun, colorful LED lights great for all biking enthusiasts Turn heads and grab attention Create a ring of color as you ride Fit most bicycle wheels 20 and up Offer over 48 hours of glow Helpful in low light conditions Battery requirements: 3 AA (not included) Comes in 2 packs Product dimensions: 8 x 2 x 10