Ruby Satin round shape brush simulates the high performance of hog bristle and mongoose hair brush for acrylic painters with longer lasting "interlon" filaments. Excellent for water mixable oils/oils and acrylic color. The revolutionary synthetic with the control and feel of interlocked bristle. Even more durable than natural hair. Artists experience superb color control with extra heavy bodied tube, or jar acrylics. It is also ideal for use with oils, encaustic or casein. Ruby Satin filaments are sealed and set in seamless nickel plated brass ferrules, then carefully fitted to deep green polished handles. Available in size 10. Measures 13-1/4-inch length by 5/8-inch width by 5/8-inch height.