I don't understand how or why anyone could waste their time complaining about a product of this quality at such a low price. They are of excellent quality. Much better than traditional plastic tire valve caps or even higher quality nitrogen caps. I coat mine with a ceramic coating and let it dry a bit before putting it on but I assure you I have no complaints. Discreet and excellent quality. Sent by Deeeeeep in New York so had to stop a lot on the way to Tennessee. Say hello to this company.