Lanyar Microfiber Dog Car Door Guard Cover Window Door Protector for Dogs Pets, Set of Two Two options to install:Insert thin metal tabs wraped with textile into window well to hold car door protectors in place;Either stick the velcro strips on the window, which attaches very securely Metal tabs thinner than plastics ones and keep high strength in hot weather,no scratching on the window Material:Waterproof microfiber which protects doors from scratches, drool, dirt. Easy care machine washable Size: Approx 20 inch length x 28 inch width; Set of two left and right pet car door guards high quality product and 100% money back gaurantee