The Butterfly Bouquet 4 Piece Mesh Crib Liner helps keep arms and legs safe inside crib slats. It's mesh design keeps baby cooler in warmer temperatures. It measures 10 inches high x 156 inches long. The short sides are 10 inches x 27 inches with ties in each corner. The long sides measure 10 inches x 51 inches with 4 ties along the top and bottom. The woven fabric is made of 65% polyester-35% cotton. The mesh fabric is 100% polyester. Care instructions: hand wash separately in cold water, use only NON-chlorine bleach when needed, line dry, do NOT iron.