The Heavy Duty Litter Mat features a grassy surface that is gentle on cats’ paws and tough on litter tracking. The generous surface of the Heavy Duty Litter Mat provides floor coverage well beyond the edges of the cat litter box – preventing litter from tracking throughout the home while protecting flooring from grit and accidents. Mat is tough, durable, fade-resistant, and repels liquids. Made from marine grade carpeting. To clean: vacuum the mat or shake it off outdoors, spot clean as needed, or hose off with water outside.