... aluminum plate, coating ceramic paint, teflon, ion power,tourmaline. Classify by materials of the straightener plate.TypeSpecialtyExcellenceshortcomingOthersAluminum plate ... at high temperatureEasy to clear, no viscidity on hair, fast temperature risingOnly black color, not very handsome ... lifeColor can be selected by customers, ion powder, tourmaline powder can be added to the coatAluminum plate ...