7/10 inch plates professional salon flat iron features a ptfc ceramic heater, home hair care includes tourmaline-treated plates with three-layer ceramic, allows for damp-to-dry styling, great for short styles, nano ti and nano tio and nano ag technology creates smooth, shiny, and frizz-free styles every time , variable temperature between 140 to 450 degrees f, titanium, titanium oxide, and silver create healthy shiny hair.