When I bought new tires three out of four OEM caps were lost at the gas station. This is the perfect replacement for lost OEM caps. The gray color matches most wheels perfectly and won't unbalance the wheels like heavy steel hubcaps. The internal threads are correct (the expensive steel caps I bought weren't) and there is a small gasket in the cap to seal any possible leaks through the air valves. I bought a 10 pack and have spare caps in the car as I believe this won't be the last time a gas station loses my caps.