Pure Bristle Kids Brush in PinkThe Mason Pearson Hairbrush cleans the hair and stimulates the scalp, increasing blood flow to the roots. Pure Bristle brushes are ideal for fine to normal hair and fine long hair. The Child's model for children aged between 3 and 6 years, but suitable for all ages. Boar bristle is used because it has a natural affinity to human hair. That is to say, the structure of Boar bristle is similar to human hair. The affinity makes the boar bristle cling to