The construction of our tire valve stems are sturdy, even under heavy-duty conditions. These valve stems are ideal for maintaining the air pressure in your automobile tires, ensuring a smooth and safe ride. Simply screw them into place, and they will provide a tight seal to prevent air leaks. Features -Color:Silver -Material:Stainless steel -Size:4.40X1.70X0.90cm/1.73X0.67X0.35in - Outer diameter: 17.5mm -Durability: constructed from stainless steel material, these valve stems offer exceptional durability for long-term use -Leak prevention: the vacuum tire valve stem effectively prevents air leakage, ensuring stable tire pressure and improved safety on the road -No inner tube: eliminates the need for an inner tube, reducing the risk of damage and air leaks, and increasing tire longevity -Convenient installation: the screw-on valve stem allows for easy and quick installation without requiring tools, making it user-friendly -Wide application: these valve stems suitable for a variety of car tires, including those on private and commercial vehicles, catering to different requirements Package list: 48 x tire valve stems