With the ISO Professional Tourmaline Twister 32mm Black you start after 6 seconds of warm-up time with the curling of your hair. This curling iron has 1 temperature setting, of 210 ° C. This is warm enough to make curls in thick and stiff hair. With a diameter of 32 millimeters, this curling iron is especially suitable for long hair that falls over the shoulders. You do not have to worry about damaging your hair; the curling rod is in fact completely ceramic. As a result, the curling iron gradually distributes the heat over the curling iron and protects your hair from the heat. In order to guarantee beautiful lint-free curls, this curling iron is provided with ionic technology.