The ScoopFree Classic Self Cleaning Litter Box is the gold standard of litter boxes. Gone is the smeall and cloud of dust that comes up when you pour regular kitty litter into a box! Regular kitter has been replaced with order and liquid absorbing blue crystals. The box is a nice large size. I sat my cat inside it and took a picture to show the scale. It's a good size for an adult cat. The process of the self cleaning is very easy. With a press of a button, the little silver "scoop" runs through the cyrstals, scooping out any waste into a holding bin you can later throw away. The bottom of this box is sturdy paper and the top is plastic. The bottom would be disposable if there was a mess but the top would need to be wiped clean. I'm very impressed and excited about not having to scoop the kitty litter box myself anymore!