For normal to thick hair of long to extra-long length: 8 rings (Large) of tufts with natural pure boar bristle (B) mixed with nylon. The durable nylon strands, with specially rounded ends, are longer than the boar bristles and penetrate through the hair to massage and stimulate the scalp, bringing out the natural oils. A unique rubber-cushion pad, made by hand using Mason Pearson’s original techniques, allows for effective and efficient brushing. It is kind to use and massages the scalp. Comfortable Handle. Cleaner brush included.