Pigma Micron - Fineliner Set of 10. The Pigma Micron is a waterproof, durable fineliner and a reliable companion for designers, scientists, archivists, manga artists, comic book creators, illustrators, and hobbyists. It is also the recommended pen for Zentangle drawing. Thanks to its fine tip, this pen is ideal for both technical and artistic drawings. Pigma Micron is available in 10 line widths for drawing precise lines with archival ink. Pigma ink is permanent, waterproof, and lightfast. It writes on practically any porous surface and is particularly suitable for use on tracing paper. The ink dries quickly and does not bleed through the paper.