Vidal Sassoon Hair iron curling iron 32mm Power-on and operation confirmed MAX is 180°C, and the temperature is adjusted by turning the dial. I used it frequently when I first bought it, so there's a feeling of use, but I've kept it stored for the past few years. Please understand that this is a used item, check the condition in the images, and purchase only if you are satisfied. Curling iron thickness...32mm