Perfect Seamless Fit for Shark: 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 volumizing brush 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 Durable Premium Material: The large round volumizing brush attachments for the Shark flex style is made from high-grade materials and is designed to last for a long time, ensuring 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 for Shark FlexStyle attachment, normal round brush attachment hair styling tool for straight, wavy, curly, and coily hair