If you sell or service tires, then you know the importance of having spare valve stems. These rubber snap-in 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 2-inches long to allow easy inflation access on deep wheels. 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!