Key FeaturesLight color: colorful gradientAvailable in 4 colorsEasy to install and removeScrews in the valve stem of your car, bicycle or motorcycleAuto shining no switch, with light & motion sensorsFits for most bicycles, motorcycles and carsPowered by 3 Pcs AG10 batteries (included)Package included:- Bike LED light x 1 pair (not fit for presta valves)- Button cells battery x 3DescriptionThis 1 Pair Bicycle Bike Strobes Wheels Light Valve Core Colorful Gradient Skull Stem Cap Tire Light is a newly-designed, which is designed to be installe