The Essential Style Double Tunnel from Olivia Garden is the 2 in 1 brush for blow drying and for more hold and control when styling.The nylon bristles are perfect for blow drying, while the double bristles provide more grip and control in the hair. Perfect for creating a sleek look.With large air openings for quick styling results.Double bristles pick up the hair betterNylon bristles for blow drying on one sideDouble bristles on the other side for more hold and control2 in 1: nylon bristles for blow-drying on one side, double bristles on the other side for more hold and control.