A volume-boosting round brush Exclusive HeatFlex bristles bend & flex to effortlessly detangle & remove knots with less pain & breakage Ultra-soft nylon bristles smooth the cuticle & enhance shine without pulling or snagging Unique concave bristle design gets closer to the root & maximizes control for more body & volume Uses proprietary VitaBoost Complex of biotin & keratin to strengthen hair & reduce frizz Ceramic barrel emits negative ions for shiny, frizz-free styles Ergonomic, rubberized EasyGrip gives more comfort & control, even when hands are wet