Features: Compatible with: The 20mm round volumizing brush is compatible with Dyson Airwrap HS01/HS05. This hair styler attachment is made of high-quality material, durable and perfectly fit for hair styler. Introduce air into the hair to create a voluminous effect. The comb teeth lift up the roots of the hair while drying the hair, making it easy to complete the styling, ideal for limp, flat hair. Multi-function attachment: The small round volumizing brush has 2 function, which can be used for hair drying, hair styling. Drying and volumizing in one step. Package includes: 1*20mm small round volumizing brush. Note: 1.Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. 2.The measurement allowed error is +/- 1-3cm.