Brushworx Rio Ceramic Hot Tube Brushes feature a unique combination of nylon and boar bristles to gently grip hair, making it easier to style while also adding shine. Designed for a faster drying time, the perforated barrel allows hot air from your hair dryer to circulate. 35mm ceramic barrel for faster styling medium length to long hair. Properties and Benefits: Ideal for smoothing, creating volume and movement on all hair types. Ceramic barrel evenly distributes heat. Offers more consistent drying and curling. Lightweight, comfortable foam handle. The ceramic barrel fights frizz for a smoother, shinier look. Nylon and Boar bristle. 35mm diameter ceramic barrel with 55mm bristle diameter.