Compatibility - This round volumizing brush is designed for Shark FlexStyle HD400 Series (HD400, HD430, HD432, HD435, HD440 models). Smooth & Shiny Results - The upgraded bristle arrangement glides effortlessly through hair, increasing shine, smoothness, reducing frizz, and minimizing breakage for a polished, salon-quality finish. Fuller Volume with Root Lift - The medium-sized round volumizing brush barrel lifts roots while adding body through the lengths, creating airy bounce and long-lasting fullness without weighing hair down. Upgraded Barrel Size Attachment - Engineered with optimized airflow and refined bristle density for better styling control and improved durability. Versatile Styling Performance - Straighten, curl, smooth, or volumize with this round brush attachment, creating professional-quality styles while reducing breakage and keeping hair strong and healthy. Compatibility - This round volumizing brush for Shark FlexStyle HD400 Series (For HD400, HD430, HD432, HD435, HD440 Model). Not Compatible with Shark FlexFusion HD600 Series. Not Compatible with Shark SpeedStyle/Pro/Pro FLEX. Color: As Shown Material: plastic Package Contents: 1*Round Volumizing Brush 1*clean brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.