A swing arm towel bar is a special type of towel bar that can be placed on the bathroom wall, adjacent to the shower or tub. This can help the bars to extend to the room and not kept restricted only to hanging against a bathroom wall. The arms move to the left as well as the right. The unit can typically rotate 180 degrees. Every arm can move independently, and these units can be installed very simply. The bars come in various types of materials, such as chrome, brass, steel or stainless steel, and have a brushed or polished finish. Find out how to choose these bars.