Thank you for viewing! This is a hammock used for cat care, such as nail trimming, eye drops, and face brushing. In our home, we used it by hanging it on a hanger rack with S-hooks. It's a size M, but it feels a little big even for our cat, who is close to 6kg. Please note that the size of the S-hooks is different. (Please refer to the photos) It has been used infrequently and there are no noticeable scratches or stains, but please understand that it is a used item before purchasing. It will be folded up small for shipping, so there may be some creases, but they should disappear after washing.