Really easy to use, it wraps itself curler your hair strands on a heated ceramic cylinder. We slide the bit that is to be complete in the device, you press the handle, when the loop is formed, the curler beeps 4 times and you can release the loop. There is thus a built-in timer that monitors the heating time. At the temperature level, you can choose between 170 °, 200 ° and 230 °. I confess that I did not go beyond 170 °, having pretty tame hair. The device is quite friendly and allows for some curls deci beyond. I think this is the kind of gift that can delight a teenager. Only drawback in my case, lack of storage bag.