Mason Pearson's CB4 children's hair brush features five rings of fine pure boar bristle tufts set in a soft rubber cushion a pneumatic design perfected over years by Mason Pearson and his family. The Pearson family's iconic design has maintained a reputation of reliability since its invention in 1905. Applying knowledge from his time in the wool processing industry, Mason Pearson invented the brush boaring machine that was to define the future of hair care. With this, he created the world's first ergonomic hair brush an unbeatable design prized for its exceptional quality, and famously handed down for generations. This gentle brush is suitable for use on your child's sensitive scalp, allowing them to become accustomed to the all-important daily ritual of hair brushing.