High Quality Copper with Nickel plating - 100% leakage tested. Maximum working pressure is 300PSI, Schrader valve core is supplying you with a safe tire system.
5x tire valve caps with O rubber seal are made of good quality Anodized Aluminum with powder coated finish for best strength and durability, surface anodic oxidation treatment makes the color brighter.
10x valve caps with O rubber seal are made of good quality Brass with electroplating treatment for better strength and durability.
25x valve stem caps with O rubber seal are made of good quality Plastic for good strength and durability.