About this item Upgrade Heatless CurlsUpgraded curling rod headband is made of flannel material outside and soft material inside, which is much softer, and more comfortable to sleep in than the old version, help you to stay in place, hold your hair tightly and no chemical smell. No Heat CurlersHeatless curler is to give you a new way of curling your hair created to get beautiful bouncy curls without damaging your hair with heat. No Damage Silk CurlersHair rollers that are long enough can be tightly fixed and are perfect for thick, thin, curly, or straight hair. The rounded edges and smooth surface will not pull or damage your hair. Easy to UseWhile your hair is slightly damp, put the curling rod over your head like a headband, you can clip it at the top or secure one side with a scrunchie like a ponytail, and then wind dry hair around the other side of the curling ribbon and secure with a scrunchie on the bottom. Make sure to wind tightly and start near the top of your head. Can leave in for more than two hours in the daytime or overnight with dry hair. EXCELLENT Service- Sleep curlers are not suitable for girls with short hair and thinning hair. The length of the heatless curls is 157cm, suitable for medium hair and long hair. If you are not 100% satisfied, or there is any problem with the curling iron, please contact us directly, we provide 365 days warranty, replacement and refund services.