Used only 2 times The original size replacement brush head. The unique H7 Oval design helps you craft gorgeous blowouts in one step. The Smoothflow Bristle and Vent Pattern provides fast drying, while the Thermaglide Ceramic Coating works to create even heat distribution and add healthy-looking shine. Mixed Boartech bristles with Silkglide effortlessly work through hair to gently detangle and grip for smooth results. The bristles are also charcoal-infused, great for styling freshly washed hair or helping to refresh 2nd-day hair. The Cool Tip provides styling control and added protection. The attachment easily fits with the Hot Tools Pro Signature One-Step Blowout Detachable Dryer Interchangeable Handle.