The Monster Babies bumper measures 10 inches high x 158 inches long. The short sides are 10 inches x 27 inches with ties in each corner. The long sides are 10 inches x 52 inches with 4 ties along the top and bottom. The bumper fabric is made of 55% cotton and 45% polyester. Filling is 100% polyester fiber. Care instructions: machine wash cold separately in gentle cycle, use only NON-chlorine bleach when needed, tumble dry on low heat, and iron on low when needed.