I am using this as a 'cup' to hold a large kitty litter box. My cats are large, and they tend to knock over the regular covered litter box, so I purchased this one to 'hold' the regular kitty litter box inside of it. I place a grip type mat in between the two litter boxes, and no matter how much the cats move about, the boxes stay in place.

I love these litter boxes! Nothing sticks to them and they're so easy to clean. Whatever coating (if that's what it is) is on them is fantastic- well at least until the cats scratch them up too much but it takes a while. It doesn't flake off or anything either so that's good. They're quite large as well and my maine coons have plenty of digging space. This is my second time buying them and the first time was almost 3 years ago. Unless something way better comes out these are my go to always!!