The Chomp N Stomp 4-Piece Bumper measures 9 inches wide x 157 inches long. The short sides are 9 inches x 26.5 inches with ties at each corner. The long sides are 9 inches x 52 inches with 4 ties along the top and bottom. The bumper is made of 65% polyester and 35% cotton, exclusive of decoration. The filling is 100% polyester. Care instructions: machine wash cold separately in delicate cycle, do NOT bleach, tumble dry low, remove promptly, and iron on low when needed.