Upgrade Heat-Free CurlsThe inner rod of the upgraded curling iron headband is made of 100% mulberry silk and is sealed in the package. No odor after opening. The curling band is made of satin material. When used, the upgraded curling iron is softer and more effective than the old one. Heat Free Hair CurlerHeat Free Hair Curler is to provide you a new way to curl your hair, allowing you to get beautiful and bouncy curls without damaging your hair due to heat. No Damage Silk CurlerA curling iron long enough to hold tightly, suitable for thick, curly or straight hair. The rounded edges and smooth finish won't pull or damage your hair. Easy to useTake the curling iron on your head like a hair band, you can clip it at the top or fix one side with a hair loop like a ponytail, then wrap the dry hair around the other side of the curling band and use the bottom The hair tie is fixed. Make sure to wrap tightly and start near the top of your head. Leave it on for an hour or two during the day and dry your hair overnight. Excellent Service- Sleeping curlers are not suitable for girls with short and thin hair Lie down as much as possible, lying on your side will affect the use effect! This heat-free curling iron is great looking, easy to use and comfortable. Also great as a gift for family, friends and colleagues.