The Zoo Zoo reversible 4-piece bumper is 10 inches high x 154 inches long. The short sides measure 10 inches x 26 inches, with ties in each corner. The long sides are 10 inches x 51 inches, with 4 ties along the top and bottom. It is made of 200 thread count, 100% cotton on all surfaces that touch baby, with no vinyl or polyester applique. Only cotton touching your baby leads to a softer, safer sleeping experience. Fabric content is exclusive of decoration. Filling is 100% polyester. Care instructions: machine wash cold in gentle cycle, use only NON-chlorine bleach when needed, tumble dry low. Do NOT dry clean. Do NOT iron print/motif.