The most valuable brush hair is obtained from the tails of the Siberian "Kolinsky", a weasel living in the extreme cold regions of Siberia and China. The very fine hair tapers from the belly half between tip and root to a point at the natural tip. The special features are it's excellent elasticity and extreme ability to absorb, hold and manipulate the color. Kolinsky Brushes are the best choice wherever the highest precision is required.