Traditional Culture Encyclopedia - Hotel accommodation - What is the telescopic rope used in the bathroom?

What is the telescopic rope used in the bathroom?

Used to dry clothes.

Pull out the metal head and there will be a long line behind it. You can pull it all the way to the opposite wall. At the same height, there will be a small groove made of metal or plastic. Put this metal in the slot and get stuck, so that you can hang your clothes on this rope. . . . .