Package Include -- You will receive 54.6yards(50m) elastic straps, and the size is about 0.19"(5mm) wide,0.01mm thick. Elastic band rolled on a small card sheet for ease of use and easy storage. TPU High Stretch -- Made of premium thermoplastic polyurethane material, soft and comfortable to your skin, with good elastucity, can serve for a long time. Black and Comfortable -- Elastic straps is simple black color, which can match with many clothes. The thin soft strap cord is cpmfortable to touch, which can be applied as bra straps, shoulder straps. Convenient to Use -- They are packed in roll, you can cut into any length and wrap the rest cord around the spool, convenient to use and easy to store. Wide Application -- Perfect for cloth sewing project like clothing, underwear, swimwear, sportswear, bedspreads, diapers, hats, etc.