Ion Titanium Pro Curling Iron. (1 1/2 inch) is designed for pro stylists to provide maximum curl retention with evenly distributed heat. Coose between variable temperature control 300- 450F of instant, constant heat with no hot spots and precise heat control for finer or coarser hair to avoid damage The titanium barrel and spring plate radiates Infrared heat, heating hair from the inside out, preserving moisture and reducing heat damage.