The Peek a Boo Jungle Crib Rail Cover measures 48.5 inches x 15.5 inches. When attached, it is 48.5 inches x 7.75 inches. It attaches to the crib with a velcro strip and is secured in place with ties on each corner. It is made of 100% cotton, 100% polyester, and 65% polyester/35% cotton fabrics. Care instructions: machine wash cold with like colors in gentle cycle, do NOT bleach, tumble dry low, iron on lowest setting as needed.