Brand new, never used! Ordered the wrong attachment & cannot return. STYLE WHILE YOU DRY: Attach the Round Brush to the Shark FlexStyle to smooth, defrizz and add volume & bounce, while delivering powerful airflow. STYLE YOUR BANGS AND LAYERS: Includes a combination of smoothing boar & nylon bristles that grab, smooth & defrizz, while delivering volume & bounce. FOR ALL HAIRKIND: Works for all hair types—straight, wavy, curly, and coily. Best on short hair, medium-length hair, and bangs. NO HEAT DAMAGE: Attach to the Shark FlexStyle for styling and drying with no heat damage. COMPATIBILITY: Compatible only with Shark FlexStyle Air Styling & Drying Systems (HD400's Series).