COTOWIN 1/2-inch Black Braided Polyester Elastic Roll (50 Yards) Braided elastic is the most versatile version of elastic and can be used for waistbands, sleeves, necklines, legbands and any other area that requires stretch ability Wide 1/2 inch,50 Yards in Length Flat elastic Color:black 70 -Percent polyester, 30-percent rubber