i was searching for a litter box that had higher sides than the cement mixing box that I have been using. When kitty waits till the last minute to pee, she is in a big hurry and at this instance doesn't allow herself time to choose a spot, and get herself ready. She just hops in and goes. Well, what happens is she ends up going over the side, because she doesnt squat as much as she usually does. So looked on the Internet and found this. ( see photo) it arrives today. Kitty hasn't used it yet but the measurements are wonderful. Have it in place ........waiting to see when kitty uses it.