GlowPRO Bike Tire Valve Cap Light. Glow in The Dark LED Stocking Stuffer Wheel Lights are The Best Night Safety Reflective Gear. Improve Visibility Keeps Kids and Cyclists Safe Universal fitment and easy to install no special wires, can be easily installed and removed. 2 piece set. Waterproof, shockproof, powered by 3 x AG10 batteries. (INCLUDED) Bright Colorful LED Lamp Lights are motion activated and turn on while the wheel is moving and off when stop. Blue, Green, Yellow, Red and Multi Color will look AWESOME on your Bike! New Packs have a pair. Powerful lumens perfect security for serious long lasting lightweight lamps. 100% No Risk, Money Back, You're Gonna Love it Guarantee!! No hassle No questions asked. Buy extra as stocking stuffers and gift for friends.