About this item High Quality: Tire valve stem extension adapters made of high quality 304 stainless steel, braided hose, copper joint, durable and stable for long term use. It is recommended to remove it after use to avoid unnecessary damage to the tire Features: The length of the tire valve stem extension is 7 inches, 2 pack. Excellent Performance: This tire valve is a great inflation accessory that can help inflate the tire, use it safely and increase driving safety. Easy to Install: Just remove the existing engine cover and screw the adapter into the tire valve. Widely Used: Used in trucks, RVs, trailers or other heavy-duty vehicles.