No more litter box chores! The Litter-Robot 4 Black is the quietest, most stylish self-cleaning cat litter box available. It provides a fresh layer of litter after every use, reducing litter marks and odors. Join the million pet parents who have switched to self-cleaning litter. Stop scooping cat litter and neutralize litter box odors with Litter-Robot 4, the highest-rated automatic litter box on the market. Elegantly designed to maximize the comfort of kittens and big cats, it features state-of-the-art technology that separates your cat's waste from the clean litter after every use. Drastically reduce litter box odors, monitor usage, and track your cat's weight with the app. Ideal for multiple cats, one unit supports up to 4 cats. Includes a fence, step, carbon filter, and waste drawer liners.