The PetKit P9219 Cat Ladder is a white accessory designed for use with the PetKit Pura X and PetKit Pura Max litter boxes. As your cat exits the litter box, it can clean its paws by rubbing them on the edges of the openings on the top cover, allowing all debris to fall into the ladder's internal compartment. The base of the lower compartment features non-slip stickers. This accessory helps maintain the cleanliness of your home and minimizes the risk of spreading debris around the house.