The Revlon Professional One-Step Style Booster is an innovative styling tool designed to simplify your hair routine. It combines the power of a hair dryer with the shaping capability of a round brush, allowing you to dry and style your hair simultaneously. This tool features a 38mm barrel, ideal for creating volume, smooth blowouts, and soft curves. Its design facilitates drying close to the roots for maximum lift and provides professional-level styling results at home.