Conair Tourmaline Brush, Round, Medium - Tourmaline, a precious gemstone is crushed into fine powder and infused into the nylon bristles and ceramic barrels, which releases negative ions - Ceramic coating on metal barrels evenly distributes and holds heat longer, so hair dries faster - Ions tighten the cuticle layer and seal in the natural oils - Conair The #1 Hairbrush Brand!* - *Source: IRI Scan Data based on dollar sales through 7/15/18