towel rail 
noun
A rail, especially one attached to a wall, from which to hang towels.Beside the sink was a towel rail on which hung two crisp white towels, starched to a knife edge....
- The family bathroom is a generous size and has a bath with a shower attachment, part-tiled walls and a heated towel rail.
- The shower room is particularly stylish - it has a slate-tiled floor, a heated towel rail, a mirrored wall cabinet and a tiled shower.