Protege fine artist brushes are skillfully hand-crafted with maximum care, attention, and quality control practices to produce the perfect assortment of affordable painting instruments for every medium. Synthetic Gold Nylon hair is designed to simulate the benefits of sable, widely acclaimed as the finest natural artist brush hair. Synthetic bristles are durable, stand up to solvents, and are easy to clean. Gold and white nylon both have excellent snap, spring and paint loading qualities. Gold nylon tends to have the finest filaments great for soft watercolor and gouache techniques. Good with acrylic and tempera as well.