Winsor & Newton Sceptre 606 (One Stroke) Series give a performance close to sable at a price close to synthetic. Bristles feature a mixture of genuine sable hair and synthetic fibers, copper wooden handle, and seamless gold-colored ferrule. Suitable for use with acrylics, watercolors, and oils. Excellent spring and snap. These flat wash brushes are great for edges, shapes, washes, and calligraphic strokes.