If you're tired of wasting clean litter every time you clean up, then you need something that's going to work for you and your cat. Self-separating and self-cleaning, the omega paw el-ra20-1 roll n clean self separating self-cleaning litter box, large is ideal for big cats or multiple cat households. The unique patented grill inside the roll's clean scoops out the clumped waste, depositing it into the pull-out tray. Simply roll the litter box to the right and then roll it back to the upright position. Remove the tray and dispose of waste afterward, and you're in the clear with less waste and a cleaner litter box. For fast, easy cleaning and a happier cat, use the roll's clean litter box from the omega paw.