Perfect Seamless Fit for Shark FlexStyle HD400 Series: Round brush attachment is designed to seamlessly integrate for Shark FlexStyle HD400 Series Hair Stylers. Please ensure compatibility: NOT COMPATIBLE WITH Shark FlexFusion/SpeedStyle/Pro/Pro Flex Volumizing Brush: Round brush attachment for Shark flex style allows you to fluff up the roots while blow drying your hair, giving it volume! Tightly designed teeth speed up blow drying for fuller, healthier hair Premium Bristles: The round volumizing hair brush attachment for Shark flex style is made of premium materials. The bristles help add shine to hair and reduce frizz. It can be used for a long time to ensure consistent performance Salon Quality Blowout: Experience salon quality results in less time. Easy to use and efficient for professional styling at home, this is a must-have accessory for everyday styling and professional-grade blow-drying Perfect For All Hair Types: The round brush designed for all hair types, ideal for home and salon use. The hair detangler brush for men and women work well through curly, thick, wavy, thin, long, short, wet or dry hair Round Brush Attachment for Shark FlexStyle Blow Dryers Accessories, Normal Oval Round Volumizing Brush Styling for Straight, Wavy, Curly, and Coily Hair, Sliver