Connoisseur Series 3510 Watercolor Liner brushes are made with premium red sable blended with a quality gold taklon fiber. The blend of hair offers the resilience and snap which makes these brushes very responsive and provides excellent shape retention. They offer the great water holding capacity of sable and the durability and spring of synthetic. They have short blue handles and gold plated brass ferrules. These brushes are great for watercolors, gouache, inks as well as general craft painting.