Stretchable Hair Ties- These elastic hair coil can be stretched to meet your need and Reverted to the original state after Soaking warm water. The unexpanded inner diameter is approx 3.5cm(1.4"), the outer diameter is 5cm(2"), the longest is 30cm(12") while stretch. Apply to Curly, Straight, Thick, Thin, Short, Long and any other hairstyles. | No crease & No pull- The spiral design they hold your hair perfectly without being tight, you won’t get headache even for wearing long time, and without weird waves. The coils stretch to comfortably wear as a bracelet when not in use, so they are ready for ponytail or messy bun duty. | Comfortable Wear- Telephone cord hair ties share the pressure of the hair to the largest surface area, which helps to minimize the dreaded ponytail bump that hair ties can create on styled hair. Spiral hair coil make your hair look more energetic, the smooth surface does not pull your hair. | Waterproof & Hygienic- Made of High Quality tpu,non-absorbent material.You can fix your hair at any time, easily make a ball head when swimming and showering. Thanks to its waterproof, it's without that “nasty wet hair tie” feeling. | Fashion Hair Accessory- They come in 4 classic colors, satisfy all your choices of hair color and your outfit styles. You will never get tired of pattern for there are just different at colors. Easy to diy your own hairstyle, make you look more charming. Perfect for working, shopping, dating, sporting, swimming, exercising and more.