The Insiders round brush collection is designed to give you the ultimate, professional styling experience. Hand-crafted using the finest high-performance natural materials. Pure reinforced bristles: Extra dense, hand selected wild boar bristles enhance natural shine and volume whilst reducing static. We mix them with a special carbon fiber nylon for the perfect balance of tension and slip. Ergonomic cork grip: The lightweight cork grip gives total control, making manoeuvering effortless. Non-slip, durable and ultra comfortable. Gentle to your hair: The mahogany wood core absorbs the heat of your blow dryer to avoid overheating the hair. Natural bristles condition the hair whilst stimulating the scalp and ensure snag-free style.