These brushes combine the strength and retention of a natural bristle with the spring and durability of synthetic fibers. The inclusion of synthetic fibers is perfect for impastos and relief effects with the color retention you expect from natural bristles. The interlocked assembly gives an excellent response on the canvas.Details:FlatSize 40Synthetic blend filamentExcellent paint loadVery durableEasy clean-upFor use with acrylic, oil and watercolor