These valve stem caps are the same overall length as most caps, however the internal thread depth is too shallow and does not fully cover the brass valve stem threads even when the caps are fully screwed in and tightened leaving some threads open . This is not an isolated case, but occurred on all four valve stems. So I will delete them and either throw them away or try to get them back. Bottom line: if you don't mind exposing the brass portion of the valve stem, I'd ditch them.