Brushworx Virtuoso Hot Tube 53mm Style hair smoother, silkier, shinier. With its beautiful rose gold finish, Brushworx Virtuoso range creates truly beautiful hair. Shape large, voluminous curls, add movement or smooth with Brushworx Virtuoso Hot Tube Brush in Large. With a hollow vented barrel for faster styling, this brush saves you precious time. The lightweight, comfortable handle is a pleasure to hold, while the corrugated nylon bristles deliver superior tension for styling.