Strongest hair tie on the market – Superior strength yet flexible enough to maneuver around thick hair. Can wrap 3 x around a ponytail (up to a 4.75 circumference). Wont give you a headache. No slipping (even while exercising) – Exceptionally strong and elastic material actively compresses the hair, always trying to reverse back to its original shape. This creates a tight, no-slip grip. Does not break or stretch out – will retain its elasticity and usability for months and because it is seamless it will never break. No damage to hair – soft, thick seamless design is easily removed from even the thickest, curliest hair. Not your typical hair tie – it wont break or stretch out after a few uses. It is like a hair tie on steroids.