Heat-free curling: The curling iron headband is made of environmentally friendly materials and soft material inside, which is soft and comfortable to sleep on, helping you stay in place and hold your hair tightly without chemical smell. Heatless Curling Iron: Heatless curling iron offers you a new way to curl your hair, allowing you to achieve beautiful and bouncy curls without damaging your hair with heat. Damage-Free Silk Curling Irons: Curling irons long enough to hold tightly, perfect for thick, thin, curly or straight hair. Rounded edges and smooth surface won't pull or damage your hair. Easy to use: Put the curling iron on your head like a hair tie, you can clip it at the top or secure one side with a hair tie like a ponytail, then wrap the dry hair around the other side of the curling ribbon and secure it at the bottom. Hair ring. Make sure the wrap is tight and starts near the top of the head. Leave it on for an hour or two during the day and leave it on dry hair overnight.