Size:Width 0.8 Inch1 Inch; Length 6 Yards. Material: Made of 85 percent polyester 15 percent rubber. Package includes: One roll in black and one roll in white. It is heavy duty and stretchy enough.4 inches could be stretched to approx 8 inches(Max). The button hole elastic tape is perfect for replacement & repair of your broken elastics in clothings, pants, shorts and skirts, tracks etc.