With the Petsafe ScoopFree Clumping Self-Cleaning Litter Box, you don't have to clean and refill your cat's litter box every day. The removable metal scoop automatically scoops away waste and clumps of litter, and eliminates odors.The litter box works with clumping litter and most other types of litter. With high walls and a large, easy-to-clean area, the box fits one or more cats. It is sufficient to empty the litter box about once a week and the litter at regular intervals. With a covered litter box that can be removed for easy cleaning, this litter box offers superior odor control!Facts about the Petsafe ScoopFree Clumping Self-Cleaning Litter Box:Self-cleaning litter box. Automatic metal scraper that eliminates waste and odors.Easy cleaning and removal of covered litter box. Works with clumping litter and most other types of litter.2 year limited warranty.