ThermaGraphene infused barrel quickly and evenly conducts heat when used with dryer. Air vents provide increased airflow for faster styling. Ergonomic handle. Strategically placed vent holes in the back to aid in ventilation and drying. Ergonomic non-slip grip. Measures 8 3/4" long including handle, rectangle area with bristles is 4 1/4" by 2 1/4".