[Compatible with Dyson Airwrap Styler HS01 HS05 Part No. 969489-01 970750-01. The round volumizing brush introduce air into the hair to create a fluffy effect. The comb teeth lift up the roots of the hair while drying the hair making it easy to complete the styling. The volumizing brush is engineered to give body and create tension to shape hair as it dries. Ideal for limp flat hair. "Attention: This is a replacement brush the way to use is different from the original. When you use it you need to twist it hard to the left to get it fully fixed on the Styler (the original brush doesnt need to do this) if you mind please buy it carefully. And we have show the useing step on the fourth image and Uploaded a usage video." Package including : 1 * Round Volumizing Brush.]