This sport elastic is soft and flexible elastic ideal for sportswear and sleepwear. Made of 70-percent polyester and 30-percent rubber. Useful for waistbands. It is machine washable and dryable in temperatures up to 200 degrees fahrenheit. Safe with chlorine bleach. Stitch directly to wrong side of fabric following the four channels. Available in white color. Measures 1-1/4-Inch in size.