The liner brush is built for one thing: long, continuous strokes with a consistent, fine line. The extended length of the bristles holds a generous charge of paint and releases it slowly and evenly, allowing the brush to travel across the surface without running dry mid-stroke. That makes it the preferred tool for lettering, calligraphic line work, fine detail, outlining and any technique that requires a sustained, uninterrupted mark. Liners are also effective for painting thin branches, grass, hair and other fine linear elements where a round would require too many reloads to maintain consistency. The selection covers synthetic and natural fibre options suited to acrylic, oil and watercolour work. For the full brush and painting tool selection, visit Paintbrushes and Brushes and Painting Tools.