Princeton Artist Brush Summit, Brushes for Watercolor and Acrylic Series 6850, Round White Synthetic Hair, Size 8 New technology has created synthetic filaments that perform like natural hair, hold as much paint, and release color with even consistency. Paint directly on wood, slate, and other rough surfaces in addition to traditional substrates. Princetons short-handled Summit brushes are new and improved and now come in blue handles. White synthetic-hair brushes are a more affordable alternative to natural sable The round is a classic painting brush used for everything from flora and still lifes to portraits and landscapes  just about any subject matter in any style. Larger rounds can lay in large areas of color and stroke specific shapes, while smaller rounds are used for detail.