Fine liners are specialized pens designed for precise and detailed drawing or writing. They typically feature a fine tip, which allows for clean lines and intricate designs. Artists, illustrators, and students often use fine liners for sketching, outlining, and adding details to their work. The ink is usually water-based, ensuring smooth application and quick drying. These pens come in various tip sizes, ranging from 0.05 mm to 0.8 mm, catering to different artistic needs. Many fine liners are also available in a range of colors, making them versatile tools for both art and design. They are popular among professionals and hobbyists alike.