Its a Hole hanger.By hooking your existing hanger on the hole hanger, you can easily make up to 12 hangers. It also has a rod stopper, so it is not easily blown by the wind. Can be used with clothesline with a diameter of 2.8 cm to 3.5 cm. Product body size: 18 cm x 17.5 cm x 42 cm. Color: Green.