These have straightners have been like a god send to me. When your in a rush and you need to do your hair in less than 5 minutes you can do it with these,Ive eve curled my hair using them and it took me 15 mins to so bad for the first  time. They heat up in less than 10 seconds and shut themselves of if left longer than 20 mintues without any use BRILLANT. I would tell everyone to get these i really reccommend them