One and done. With wider plates, the T3 SinglePass X is specifically designed to straighten long, thick, or coarse hair in a single pass. This iron features an innovative audio/visual interface and digital heating system that maintains consistent heat while straightening. T3's combination of tourmaline, ceramic, and ionic technology creates a long-lasting, smooth finish. How do I use it: For flawless straightening from roots to ends, divide hair into two sections using the included sectioning clips. Work with very thin, wide sections of hair that are the same thickness as the iron's plate and as wide as the length of the plate. For best results, glide the iron down each section with a slow, steady pace. From T3.