Zero DamageThe Heatless hair curler use environment-friendly premium EVA material and silk, has zero damage to your hair. It's definitely your secret weapon to create healthy bouncy curls HEATLESS CURLS This curler is heatless, so it requires no electricity and hence has no occasion limitations or safety issue, DIY your hair style easily Light & SoftThe heatless Curling Rod Headband is soft and light and very convenient to use, definitely a take-any-where curler for you. Get some sleep and wake up with lovely bouncy curls 5 Steps to Use1. wash and dry your hair (80% dry is better) 2. fix the curler on the middle of your head with a claw 3. tie your hair around the curler strands by strands 4. tie the end of your hair with silk scrunchies 5. wait a few hours or sleep in them overnight to get lovely curls Warm tipsAccording to the thickness of the hair, thicker of the hair, the longer it stays and the curl more beautiful; the hair curl size adjusted according to the density of the ties, the denser the curl smaller