Knit sport elastic is an easy to use waistband elastic that is perfect for sportswear, casual clothes and even sleepwear. * It is meant to be stitched directly to the inside of the garment so it is quick and easy to use. the four sewing channel guides make it easy to sew on. * Each spool contains 25 yards of elastic that is white in color and is 1 1/4 inch wide * 75 percent polyester, 25 percent rubber