Washable Wonders female dog diapers set of 4. Adjustable snaps that allows room for growth while potty training. Can also be used for incontinence and Heat cycles. Soft microfiber thick material helps absorb the mess. Microfiber liner absorbs up to 7 times its weight in liquid to effectively control leaks. Velcro around that stays in place. Elastic leg opening and tail hole. 2 still new and 2 gently used and washed. Small fits 18-21”