The Ecohair Vent brush combines professional performance with an eco-friendly bamboo design. Its vented structure speeds up drying while ionic and boar bristles smooth the hair fiber and enhance natural shine. Vented design helps speed up blow-drying Ionic and boar bristles smooth and enhance shine Eco-friendly bamboo handle HOW TO USE Use during blow-drying to allow airflow through the brush. Brush from roots to ends to detangle, smooth and enhance shine.