BEFORE USE:Universal Fluorescent Car Tire Valve Caps When installing for the first time, please illuminate the tire valve with light or sunlight for 5-6 Minutes, Universal Fluorescent Car Tire Valve Caps the effect will be brighter at night. (It automatically absorbs and stores light energy, glowing at night)When the car is driving the wheel tire caps will form a cool aperture, made your car wilenerate a unique and luxurious appearance, stylish and dazzling.Features:1. Made with high quality and style2. Sleek design is highly personalized, yet understated to go perfectly with any wheel choice3. Suitable for outdoor use even during extreme weather, can last for a time use4. Easy to install and remove, no need any ex toolsUniversal Fit on All TiresFor Car, Truck, Suv, BikesRep the bad valve cap of the tyre and also show the beauty characteristic of the tyre【Material】It is made of non-corrosive materials, and the internal rubber seal is used. The shell is made of high-end ABS material, which is hard and ble, not easy to break and fade.We use real fluorescent light to absorb light during the day and glow on dark roads, ing you more cool and dazzling when riding (note that in the first use, please illuminate the tire valve cover with light or sunlight for 3 minutes, and the effect will be better at night. it is good)