If you sell or service tires, then you know the importance of having spare valve stems. These rubber snap-in TR412 style valves are made of quality EPDM rubber with brass threading and a pre-installed valve core and allow a maximum cold-tire inflation pressure of 65 PSI. They are designed to fit 0.453-inch diameter holes on tire wheels and rims, and are a compact 0.88-inches long. Ideal for use when replacing old and cracked stems on any tubeless tire from cars and light trucks to wheelbarrows, lawn tractors/mowers, ATVs and motorcycles. The original equipment manufacturers (OEM) requires that the valve stem components and EPDM rubber seals are replaced every time a new tire is installed, so be sure to stock up on this essential tire accessory!