This is a set of 9 extendable hangers. They extend to approximately 64cm, allowing you to hang bath towels without wrinkles. Also, the part that hangs on the clothesline is shaped like a clothespin, so the hangers won't move even in strong winds, making them convenient. I used them for about a year, and then stopped using them when I moved. They've been stored in a closet for about 3 years. There is no noticeable damage or deterioration.