Pigma Micron - Fineliner Set of 3. A selection of 3 black Pigma Micron pens with the widest tips: 1 x 0.8 (0.50 mm), 1 x 1.0 (0.60 mm), 1 x 1.2 (0.70 mm). It is also the recommended pen for Zentangle drawing. With its fine tip, this pen is ideal for both technical and artistic drawings. The unique Sakura Pigma™ ink does not bleed through the paper, is permanent, waterproof, lightfast, quick-drying, and pH-neutral. Pigma ink is permanent, waterproof, and lightfast. It writes on practically any porous surface, especially suitable for use on tracing paper. The ink dries quickly and does not bleed through the paper.