Omega Paw Large Elite Roll n’ Clean Self Cleaning Litter Box with MatThe Elite Roll n Clean self cleaning litter box cleans in just seconds without scooping. Inside the litter box there is a unique patented grill that separates out the clumped waste, depositing it into the pullout tray. This Elite version has many upgraded features such as, chrome plated locking clips, a chrome plated thumb tab, as well as an integrated litter step that catches excess litter before the cat tracks it onto floors. Features: Cleans in