6 rings of Boar Bristle & Nylon Tufts generally used for normal to thick hair. Regular brushing plays an important part in the condition of your hair. The Mason Pearson Hairbrush cleans the hair stimulates the scalp increasing the blood flow to the hair roots. A natural conditioning oil - sebum - comes from the hair giving it strength suppleness and producing a healthy sheen. A Mason Pearson hairbrush is designed to provide many years of quality usage.