These are children's socks. The size is 15-18cm and they are ankle length. I bought them for a boy, but I think a girl could also use them. I bought them for my child, but they were too small, so I'm selling them. They are new and unused, but please refrain from purchasing if you are concerned about home storage. There is a fraying as shown in the 5th photo. I am not selling them individually. I am selling them as a set of 3.