Spiral Hair Ties No Crease Elastic Ponytail Holders, phone cord hair tie, ponytail holder spiral coil no traceless rubber bands. Spiral Hair Band No Crease Elastic Ponytail Holders Hair Ring What's the material of this Elastic Hair Bands? Phone cord hair ties Use high quality TPU material, waterproof, durable and strong. It's friendly to your hair. Compared with regular Spiral Hair Band, Double spiral design, hold your hair better. they Can be Used for Bracelet or Key Chain too. Is there any warm tips? If your coil stretches out over time, just use a hot blow dryer on it and it will quickly return to size. Please take off Elastic Ponytail Holders when you sleep.