Waterproof and Hygienic: The phone cord hair ties are non-absorbent, oilproof, waterproof, so they can be worn while swimming or bathing, and they can be removed from wet hair much more easily than a traditional ponytail holder.No Headaches or Ponytail Bumps: The spiral design of telephone cord hair ties and smooth surface can prevent hair breakage and tangling when you take off the hair ties, and helps to minimize the dreaded ponytail bump. The coil spread the "pressure" of a hair rubberband out over a greater surface area, helping to prevent Headache.Good Quality and Graceful: The spiral hair ties made from high quality plastic + resin, soft hand feeling. It also looks great on your wrist. The ties stretch to comfortably wear as a bracelet when not in use, so they are ready for ponytail or messy bun duty at any time. Care Instructions: Clean your hair coils with light soap and water. If your coil happens to stretch larger than its original size, simply place it in a cup of warm water or use a hot blow dryer to shrink it to its original size.For All Types Of Hair: Whether you have long, thin hair or thick hair.