Size: Medium |Color: Gray The PetSafe Cat Litter Mat offers you the most flexible option for keeping your cats litter area tidy. This mat is designed to work with clay, crystal, or alternative types of litter, and the plastic mesh and deep grooves of the pattern capture leftover litter pieces as your cat leaves her litter box. Several sizing options are available to fit any litter box, and the double layer backing provides waterproof protection for your floors. PetSafe brand is here to help you and your pet LIVE HAPPY TOGETHER.