The cone slide (the word I knew not yet), performs jetz unspectacular since about 2 weeks his ministry. The shower head is held securely, and also on the shower rod he holds tight. Deviations in diameter I could not tell because the thing makes a very solid impression, I can not even imagine. That you have to break down the shower rod for should be clear. Ginge also determined somehow different, but rather as something which is screwed a long way around the pole.