The basics The ultra-thin profile of these high-tech irons makes them exceptionally lightweight and easy to work with. The benefits The extra-long 5" plates reach up to 450°F and allow for wider sections to be straightened, boosting speed and effectiveness while eliminating hand fatigue and increasing styling flexibility. The uses Available in 1" and 1-1/2" plates. Ceramic heater instant heat & recovery. With 5" extended plate for faster straightening.  The bottom line aByliss Professional Nano Titanium 1" Flat Iron comes with 50 heat settings – up to 450°F.