The use is simple; you use the ring to hold up the curtain. To do this, you slide the curtain hole onto the end of the ring that has the bulb on it, and then place the ring (with the curtain attached) onto the curtain rod. The rings are necessary to hold up the curtain and to allow it to move to open and close the shower. Depending on how you have the shower curtain hung, this task can vary in difficulty.
I actually have to put that into my paper.
