Similar to the ScoopFree Original Litter Box, The ScoopFree Ultra automatically rakes your cat's litter underneath the effective waste trap lid after your cat uses the box. The difference? The ScoopFree Ultra has a bundle of extra features! The ScoopFree Ultra allows you to select whether you want the rake to run through the crystal litter 5, 10 or 20...
Our cats love this product. We use it as an occasional treat, and they always finish it. We did try freezing one, like suggested on the packet - but, I think they didn't appreciate the cold much. Would def suggest as a nice cat treat.