ArtistÃƒ©'s Liner Gel Brush is perfect for creating straight lines. Create hand-painted zebra patterns or tiger stripes with ease using a quality-crafted liner brush. This brush is manufactured with synthetic fibers which makes the bristles tougher than brushes made with natural hair fibers. The synthetic bristles are easy to clean and sanitize. Each brush is sold with a protective cap that prevents the bristles from becoming warped or damaged over time.