Key BenefitsGraphene MX infused barrelBarrel quickly and evenly conducts heat when used with dryerAir vents provide increased airflow for faster stylingSoft touch ergonomic handleWhen used in combination with a dryer, this brush delivers moisturizing heat boosted by GrapheneMX, the ultimate heat conductor, infused into the barrel. The vented barrel allows you to style faster, while the GrapheneMX prevents against frizz. Hair is left smoother and healthier.Use:Pre-heat you brush prior to starting your blowout. This technique can provide more shaping power and help speed up your styling time. Medium 33 mmLarge 53 mmX-Large 65 mm Bio Ionic Graphene MX Styling Brush XL