da Vinci Oil & Acrylic Series 1845 Oil Paint Brush, Filbert Russian Black Sable, Size 2 Highest quality Russian black sable is slightly stiffer and more rugged than red sable hair Allows for bristle-like strokes only smoother without marking the paint layers Excellent for delicate blending and smoothing out ridges makes it a favorite with portrait and realist painters Great color-carrying capacity with the ability to move large amounts of paint Black sable is a great value compared to Kolinsky red sable hair, especially in large sizes