The CribWrap Short Rail Covers for Wide Rail Crib by Trend Lab are a set of 2 protectors. Each measures 27 inches x 18 inches. They are designed to fit crib rails measuring 8 inches to 18 inches around. They are the perfect solution for protecting your crib and teething baby. They easily secure to the crib with 4 ties...just wrap and tie. The front is made of 100% polyester and the back 100% waterproof EVA. Filling is 100% polyester fiber batting. Care instructions: machine wash cold with like colors in gentle cycle, do NOT bleach, line dry. Do NOT tumble dry, iron or dry clean.