- Barrel diameter measures 7/8" and bristle diameter measures 2". The newest generation of the most advanced professional brush combining the latest ceramic technology with tourmaline ion technology. The Ceramic coated barrel heats up faster and retains heat longer for faster and better styling. Tourmaline Ion Technology adds luster and sheen while smoothing hair. Anti-static, ion charged bristles have comfortable ball point tips that are gentle on hair and scalp. Large vents maximize airflow to create curls, waves or add volume. Unique Patented Design gives a snag-free neck ring and ergonomic comfort grip making brushing effortless. Includes a retractable sectioning pick.