Mason Pearson Popular Boar Bristle & Nylon Hairbrush. Includes a cleaning tool. This hairbrush is handcrafted with the following specifications: Rubber cushion: Dry Natural Rubber (DNR). Handle and base: Cellulose acetate plastic. Bristles: Boar bristle & nylon tufts. As a natural product, boar bristles may vary between hairbrushes, but we take every step to ensure the quality and consistency of our brushes. Logo: Elegantly embedded with hot foil Size Length: 9 inches / 22.86 cm Width: 3 inches / 7.62 cm Head: 5.12 inches / 13 cm