The Kolinsky, ancient name of the Siberian mink, is a species living in Siberia and in the north of China, whose hair, the marten, possesses a spring, an elasticity and an incomparable vigor. Thanks to its flower, this golden red hair is ideal for a precise and detailed work. With its excellent holding power, it is the ideal hair for all artists' brushes. Called the Rolls of the brushes, its price per gram may have exceeded that of gold throughout history.