Compatible with the 10X Ultralight Speed Dryer, PowerLight™ Pro-Dryer and the Gold Pro Speed Dryer. Heat resistant, durable and lightweight. 12 air outlets for faster drying time. Controllable airflow and extended fingers reach down into scalp. Turn the dial to adjust air flow based on your styling and hairs' needs. With all vents open, a higher flow of air will come through the diffuser. Close some vents to create a more targeted, lower flow technique. Long fingers reach down to the scalp to dry roots and create lift when desired. Keep all vents open for increased maximum airflow. Turn dial to lessen air flow.