After sales: Our products are high quality products, if you have any dissatisfaction. Please let us know in time, we will refund you unconditionally. Expressing patriotism：The American flag designed tire valve cap is low-key, but still the perfect way to show your patriotism, support for government and love for freedom, the American flag represents. Installation: Hexagonal design, just screw off the plastic cap of the original car and screw on the metal one. The valve stem cover is suitable for cars, trucks, motorcycles, bicycles and other motor vehicles. Safety: Protect stem cap from corrosion caused by direct contact with clay, water and snow. The rubber sealing O-ring is built in the valve cap of automobile tire, which has leak proof function and can not leak in long distance and hard driving. Prevent tire burst and ensure stable tire pressure. Ensure safe driving. High quality: This product is made of 100% alloy material, never rust, never fade, directly replace the original black plastic valve cover, from the details to make your car different.