Yes, I know there is no such thing. I have a steady drip in my shower that I am trying to fix. There are two handles, one hot and one cold. I want to replace the valve stems. Between the handles and the material the covers the wall, there are these two bell shaped things that, I assume, are there for aesthetic purposes to cover the holes in the marble or whatever it is. I put a large pipe wrench on one of them, turned counter-clockwise, broke it loose, but it just turns and turns. I assumed it was threaded onto something, but it just turns and turns. Any ideas on what is holding this thing in place. I can't tell you what make or model these things are, no markings or any thing.
thanks