COSMOTOP-SPIN synthetics are great for watercolor, gouache, acrylic & ink. Spin holds more water than any other synthetic with a blend of 5 different diameters of extra smooth fiber ensuring the highest color-absorption of any synthetic brush. It has a sturdy construction and will retain its shape. Beautiful lacquered red handles and nickel-plated brass ferrules are rust proof. Due to the DUROPLUS technique, this mottler is long-lasting. Certified green manufacturing with sustainable wood handles. Handmade in Germany at our family-owned factory since 1890.