What can you say. The caps are now on it a few months. They look good and do their duty. But above all, they are stuck, as it should be. Importantly, the retaining ring has yet to be pressed into the caps. But that's no problem. There are two different positions depending on the size and nature of the rim. So first try at a rim. If you installed the wrong ring, the caps (hence probably the bad reviews here) are too loose. Then you have to stop the ring in the other notches press.