This straightener right out of the box reminded me of a toy. I said to myself lessons learned it won't work. I was DEAD wrong. Used it on mine and my daughter's hair. Her hair goes past her thights and it only took me 10 minutes to straighten. It's super thick and wavy. Mine is thick and wavy just not as long but took me minutes. The next day, heavy rain and muggy out, I STILL have straight unfixed hair