Material: The elastic of the wig is made of polyester and rubber to ensure its durability and elasticity. Soft, comfortable, breathable, no harmful odor, safe to use. Good elasticity: good tensile degree, easy to restore the original length without deformation. It is ideal for DIY elastic materials that allow you to adjust the perfect tightness. Suitable for most sewing projects, each sewing elastic is neatly rolled into a circle before wrapping and easily cut to the length you want. Widely used in pajamas, shorts, sportswear, underwear, skirts, belts, necklines or crafts DIY projects. We are confident that the quality of rubber bands will exceed your expectations. If you have a problem, please feel free to contact us, we will learn from your experience and we will do better. The extensive application of elastic bands in sewing has made people's lives more convenient, especially for clothing. They are widely used in purchasing products such as leggings, waistbands, bicycle shorts, shirt plackets, ski pants, underwear, bras, and clothing cuffs. Additionally, folded elastic bands and decorative elastic bands are suitable for DIY crafts, such as making wristbands, armbands, elastic hair ties, and colorful elastic bands. They are also used in products like wigs, knee pads, and over-the-knee boots. Product details: Material: Polyester fiber Size: 1 inch X 3/5/12/50/100 yards Multiple sizes are available Color: Assorted colors Quantity: 1 set X sewing elastic bands Friendly reminder: Be sure to use sharp scissors to cut the silicone elastic thread spool to prevent wear. After use, roll up the remaining silicone elastic band for better storage and protection. If the cut end becomes frayed or easily unravels, secure an additional stitch at the end. After use, roll up the remaining elastic band into a circle for good protection.