The Boy's World 4-piece reversible bumper is 9 inches high x 157 inches long. The short sides are 9 inches x 26.5 inches with ties in 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. Filling is 100% polyester fiber. Care instructions: machine wash cold in gentle cycle with like colors, do NOT bleach, tumble dry low, and iron on lowest setting as needed.