Size Reference: Each buttonhole elastic band measures 25mm/1 inch in width, 9m/10 yards in length, you can cut the proper length for daily using. Good Material: Made of polyester material, with strong elasticity and good craftsmanship, will not easy to tear off, durable and practical for your sewing work. Buttonhole Design: Each elastic band designed with buttonhole, comes with extra 10pcs resin buttons, convenient for your sewing work. Easy to Use: It allows you to cut the proper length with scissor, and to fix the rest with a pin, you don't need to worry about messing it up. Wide Usage: Great for adjusting waistline of shorts, skirt, pants and other garments, suitable for kids, pregnant woman, adults, elderly and all people of different sizes.