One handle with detachable barrels can be left in the hair. PerfectFit™ gap-free connection and one-handed, quick release handle are the result of years of R&D, being tested over 250,000 times. Handle also has an ergonomic, ant-slip grip and is extremely lightweight. Ceramic coated barrel heats up faster and retains heat longer. Large holes maximize airflow. Ionic technology hydrates the cuticle and adds shine while eliminating static and flyaways. Bristles offer a special grip for self holding. Vented cap for faster drying.