Black Shaving Brush (Pure Badger). GUSTAV, the collection’s classic – just like the archetype of every shaving brush, a contemporary interpretation. Made of a slightly shimmering plastic, the fine waist of the handle is a kind of anti-slip-guarantee for thumb and index finger. Ring size 21mm. Pure badger is the basic quality among the natural hair types. The material is recognizable by its relatively dark colouring. The individual hairs are somewhat thicker, but still soft and flexible. This quality is highly recommended for those wishing to take a badger hair brush that provides a slightly stronger massage effect.