WINSOR NEWTON MONARCH The Monarch Brush is a professional synthetic hair brush that mimics the look and feel of natural Mongoose hair (now an endangered species). Just like Mongoose hair, the polyester filaments in the Monarch provide a stiffer alternative to sable hair but softer than hog bristle which means this brush is excellent for subtle blending, glazing and fine detail work. In addition, because MOnarch is synthetic. It is more durable than natural hair and has more spring making it better for moving heavy bodied oil colours as well as being prone to damage from solvents or paint. Monarch is suitable for oil colour, water mixable oil colours or acrylic painting.