Hair Brush Tourmaline & Ceramic T3 Micro Round Hair Brushes, MED. 2.5"- LG 3". T3 Micro Hair Round Brushes Ideal for medium & long length hair. Tourmaline Ionic Bristling vented design with a soft non slip handle. Heat resistant bristles optimized for fast styling & drying, Vented body aids fast drying while air circulates freely.