Professional flat iron with advanced ceramic tourmaline technology.1. Led temperature display2. Works well with brazilian keratin3. Adjustable temperature from 50-243 celsiu(122F- 470F)4. Ionic-volcano and Titanium Technology5. Width of plate 1 inch, newest heather6. Universal voltage adapter to 110-240v7. Infrared heat protects hair with negative ions through dispensing holesProfessional hair straightener 4 cm THC Ihair Keratin