A Kolinsky Sable hair brush is a fine artists paint brush. The hair is obtained from the tail of the Kolinsky a species of weasel rather than an actual sable. The weasel is not an animal that is raised well in captivity and is generally isolated to Siberia. Due to the 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.
Size No. 1
Very nice brush.