The Sweet Baby Dreams 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 100% cotton. The mesh fabric is 100% polyester. Fabric content is exclusive of decoration.