What is a Shower Chair? (with picture)

When my dad had a stroke, the physical therapist at the rehabilitation center told me I'd need to install a shower chair before he was released. The one I got from the medical supply store was more of a bench. One end hung out over the bathtub, and he was supposed to slide over to the other side to take a shower. The problem was, the bench made it impossible to pull the shower curtain closed, so water was getting everywhere.

I went to another medical supply store and they had an actual shower bath chair. It fit precisely inside the tub, so I could pull the curtain all the way. He was mobile enough to step into the tub and sit in the shower chair seat, though. I don't know if a chair like that would be ideal for people with no strength in their legs. The original bath bench seemed better for that sort of situation.