Do not want to go hair salon, but want to create a really professional sleek sedu hair style by yourself?No problem. You can create Sedu hairstyles with the help of flat iron, it’s a good idea to know how to use this amazing magic hair tool. The Sedu flat iron uses two flat ceramic, tourmaline plates, available in 1” and 1.5”, that are heated and apply this heat along with negative ions into your hair.