Top Acryl Brushes are constructed with 5 different diameters of extra strong and extra smooth synthetic bristle. The varying diameters hold color much like the "flags" on the tips of artist-quality Chungking Bristle. Top Acryl brushes are shaped by heat after gumming for the "interlock" effect so that all shapes keep their form after long and vigorous use. Top Acryl brushes are extra stiff with a precise snap which makes them excellent for heavy body acrylics or oils and a favorite for impasto painters (who use thick applications of paint). Whether massing color in the larger sizes or precision painting in the smaller sizes, Top Acryl brushes offer the artist versatility and ruggedness. Their seamless nickel-plated brass ferrules are rust-resistant.