The Peek a Boo Monsters 4-Piece bumper is 10 inches high x 157 inches long. The short sides are 10 x 26.5 with ties in each corner. The long sides are 10 x 52 with 4 ties along the top and bottom. It is made of 65% polyester and 35% cotton, exclusive of decoration. Filling is 100% polyester. Care instructions: machine wash cold separately, do NOT bleach, tumble dry low and remove promptly, and iron on low when needed.