Feature：100% brand new and high qualityTire valve cap lights screw onto the valve stem of your car, bicycles or motorcycle in seconds.Universal fitment and easy to install no special wires, can be easily installed and removed.Fits most valves of road, mountain bicycles, motocycles and cars.Bright LED will turn on while the vehicle is moving and off when the vehicle comes to a stop.Silver body with ultra bright, long life-span led lights.Enhances safety by increasing visibility at night and during bad weather conditions.Specification:LED Colour Effect: BlueMaterial :Alloy & PlasticWaterproof, shockproof.Power by 3 x AG10 batteries.(Included)Size: 7cm x 1.7cm x 1.7cm.weight: 14gItem Color (no led light) : BlueNotice :Please remove the insulating tape before using.This suit for UK & USA wheel Valve caps only，NOT fit for French type Valve which requires the adapter.Package Included:1x Wheel blue LED Light3 x AG10 batteries