Material: It is made of high-quality aluminum alloy, waterproof, dust, wear resistant, anti-corrosion, and durable. Easy to install: Tighten it to the tire valve clockwise. Designed for tire fetal skin replacement of automobiles, trucks, off-road vehicles, motorcycles, bicycles and household vehicles. Good sealing: You can never screw it until the bottom of the valve, which provides good airtightness and airtightness for the valve stem. Anti-theft: This air valve is covered with anti-theft wrench designs, which can lock the valve cover, not easy to steal. The packaging includes: You will get 4 tire gas-opening, which is enough to meet your daily needs. Product description 1. Using zinc alloy materials and leak-proof design, instead of the plastic valve of the original car. 2. The metal is shining, so that the car is more beautiful 3. Durable quality: with a seal, waterproof and leak-proof. 4. Anti-theft design: There is a hexagonal screw on top of the valve cover. We have a hexagonal wrench. After installing the new valve cover, tighten it with a hex wrench to achieve the anti-theft effect. The bad guys can't take it with your hand.