The Pro Arte Acrylix Painting Brush Round Series 202 comes with Pro Arte's special Acrylix bristles, developed as a synthetic alternative to hog hair. The bristles are firm yet flexible, with a silky texture they'll retain even after lots of use. They are extremely durable and you can leave them standing in water without damaging them. They are a delight to paint with, last for ages and are also less expensive than hog hair, so it's easy to see why they are so popular with artists working in acrylics and oils. The Pro Arte Acrylix Painting Brush Round Series 202 comes in a range of sizes to suit all purposes.