A water-based fine liner suitable for calligraphy, coloring, drawing, decorating, note taking and more | With the line width of 0.4mm, fine and durable tip allows you to write and draw more precisely and smoothly without interruption | Water-based ink creates water color effects when used with a water brush | Simple and compact design | 24 colors - Add dimension to your artwork with our 24 vibrant colors that range from bright primary to vivid neon