All three of these varieties are inferior to sable and should not be bought on round brushes because they don't hold a point very well. They are, however, well suited on brushes for wash techniques. Squirrel and goat hairs are well suited to mop and wash brushes, while the strong but coarse texture of ox hair makes it suitable for flat, square-cut brushes. Ox hairs that have been dyed to resemble red sable are called sabeline brushes.