Without contest these brushes are the most important new development in artist brushes this century. AquaLasur combines a unique head shape and tight formation of natural pony hair. This patented combination allows the brush to remove wet watercolor from virtually every artist watercolor paper by soaking out the color without damaging the surface. Even dried colors may be removed, simply by dampening and then lifting the color up. Brushes are superbly crafted in Germany with balanced blue handles and seamless nickel-plated ferrules. Try a set today and if you don't love the quality and utility of these amazing watercolor brushes simply return them to us for a full product refund - no questions asked!