The Infiniti Pro by Conair Ultimate Root Booster Medium Porcupine Round Brush creates a luxurious new level of volume! The alternating Triangle Airflow Bristle design lifts hair right at the roots. The unique combination of vented bristles and barrel allows up to 50% more airflow with your blow-dryer. It helps to reach hair for big, beautiful volume! Add volume, body and shine to all hair types