Large Mason Pearson Pure Bristle & Nylon Hair Brush in Dark Ruby (BN1 Popular)Mason Pearson has a unique reputation for the highest quality hairbrushes. This is due to not only the versatility of sizes and hair types, but also the design of the hairbrushes. The design consists of first class quality boar bristle and bristle nylon set in a pneumatic pad so that every tuft of bristle penetrates right through to the scalp. Mason Pearson hairbrushes are made in various sizes, colours and various hair types including sensitive