Conair Rainbow Collection Dry Style Volumize Brush 86716 Medium. New in package. Dress up your styling station and color your world beautiful with Conair’s Rainbow Collection of colorful hairbrushes. The Thermal Round Brush features a vented metal barrel, making it the ideal blow-dry brush, as it retains heat and allows more airflow to reach hair to dry and style fast. It's easy to create a variety of styles, like soft waves and curls, or smooth and straight looks on coarse, curly or wavy hair – this brush can do it all! Check out my store for more great deals available!