I unfortunately had but the annoying problem that the shower drain zusetzte with hair and I was able to clean it weekly. So I looked around for a solution and ordered these two screens. One fits into the bathroom sink, the greater the shower. Tested, subsequently found to be good. It was easy to wipe with a paper towel, the hair went out, the outflow was free and in the shower it did not answer as it sometimes is to be with silicone parts. No unwanted floating away was observed. Let's see how long they "live" aka look reasonably and remain intact. Very thick the material is in fact not, but that does not have to be.