? Product Description? Tyer Valve Self-lighting, no electronics, beautiful protection two in one for vacuum tire valve cap replacement and upgrade best quality ABS material, practical, long life inside and outside the double layer to create, in one go, beautiful pumping Substantial phosphor to build, a lot of light storage, put light longer.? Fluorescent Effect: The fluorescent effect on dark roads adds a shiny and luxurious look to your car. Make your night cycling cooler and greater!Easy Installation? Easy installation without tools. Simply screw it onto the tire valve stem. It's easy to install or remove when you want to check air pressure.? DurableMade of best quality ABS material, dust-proof, waterproof, wear-resistant, and corrosion-resistant. Texture design is easy to hold and use.? Widely Used: The universal size fits most cars, buses, SUV, trucks, motorcycles, and bicycles, etc., keeping the tires of vehicles at the proper inflating level.? Purpose: The valve cap can protect the tire valve from dirt and dust and extend the service life of the tire. It can also be used to replace the broken original valve cap and keep the wheels working well.