Great idea but did not work on my hair. I have extremely thick hair, and this just didn't cut it. I tried it when my hair was wet, damp, dry, and even tried blow drying my hair with it in. Even though my hair is naturally wavy, it did not curl my hair, or if I got a few curls out of it, they fell within an hour. Seems like it works for many people, but it did not work for me.