Kolinsky sable-hair brush

A kolinsky sable-hair brush (also known as red sable or sable hair brush) is a fine artists' paintbrush.

The hair is obtained from the tail of the kolinsky (Mustela sibirica), a species of weasel rather than an actual sable. The "finest" brushes are made from the male hair only, but most brushes have a mix of about 60/40 male-to-female hair. Kolinsky bristles tend to be pale red in colour with darker tips. The weasel is not an animal that is raised well in captivity, and is generally isolated to the geographical region of Siberia. Due to this difficulty in harvesting the hair, and the fact that other natural and artificial bristles are not comparable in quality, these bristles are rare and expensive.