Kolinsky short handled triangle tip brush. Kolinsky sable-hair brush is a fine artistsXDT paintbrush. The hair is obtained from the tail of the kolinsky use for oil and acrylic. It is generally conceded to be the best material for oil and watercolor brushes due to its strength, spring and ability to retain its shape ("snap"). It holds a very fine point or edge. A very fine, thin hair, It works best with liquid paints and inks.