[20 Yards Silicone Elastic Tape]: Comes with 1 roll non-slip strip silicone elastic gripper tape in black, approx 10mm(0.39inch) wide(middle with 3.5mm wide rubber strip), 1mm thick, 20 yards(18.29m) long, long enough to meet your daily need. [Elastic Fibre Material]: Made of high quality elastic fibre and silicone, stretchy and breathable, would not deform or break easily. Hard to curl, fray or pill, great for sewing work and home use. [Silicone Design]: Flat elastic band designed with middle silicone strip, which can increase the decorative beauty and non-slip, avoids it slip away from clothes, skin and other surface. [Easy to Use]: You can cut the non-slip elastic band to a suitable length as needed, sew it with a needle or stick it on fabric with glue, suitable for various clothing surfaces. Convenient rolls to restore after use, can fixed the end with needle. [Wide Application]: Good for both normal clothes and sportswear, great for home and outdoor, vacation sewing needs. Suitable for underwear, bras, bikini, knee brace, bib shorts, bike riding shorts, cycling shorts, cuffs of skiwear, etc.