* Tire valve caps are durable, anti-rust, water-proof, with rubber o-rings seal inside to prevent air leakage, antioxidant even in extreme weather * Universal tire joint. Our valve stem cover is suitable for any cars, trucks, bicycles, motorcycles, electric cars, pickups and other vehicles * Easily install by hand, with the rotating thread it is easy to install, the tire valve stem caps are easily hand tightened, screw on tire stem by hand directly.