This is a roll hair brush (circular type) by REDECKER, a long-established German brush manufacturer. The body is olive wood and the bristles are expensive boar hair. The bristles are rolled in 10 rows. Boar hair not only gives your hair a shiny and cohesive look, but also protects your precious hair from static electricity. Boar hair brushes are overwhelmingly supported by many professionals such as beauty salons and barbershops for reasons such as [reaching the scalp], [difficult to generate static electricity], and [glossy hair]. Also, boar hair is expensive enough to be harvested by one piece. Size: Total Length: Approx. 8.3 inches (21 cm) (including brush) / Brush Hair, Approx. 0.6 inches (1.5 cm), Material: Body: Olive Wood/Brush Hair: Boar hair