*Heavy stretch knit elastic is designed to be a bit stiffer and offer more "kick" to its stretch than other elastics. it offers a stiff, strong stretch and can be used on heavier fabrics. *The elastic will not narrow when stretched making it perfect for exposed waistbands to top off a gathered skirk or pants. heavy stretch knit elastic is also great for cuff bands and jacket waistbands. *85 percent polyester, 15 percent rubber Package included 3 yards black 4 inch wide elastic