Back Seat Hammock for Dogs Protect your car interior from dirt, dander, and spills; fits most vehicles Quilted construction offers luxurious comfort, warmth, and durability Adjustable straps. Seat belt opening. Easy to install and remove 100% Polyester Fabric with waterproof backing; 56" (inches) by 56" Hand wash with cold water, scrub stains with mild detergent, line dry