Sakura Pigma Micron professional writing tools, debuting in 1982, were the world's first pigment-based fineliners. Pigma Ink offers excellent resistance to chemicals, water and fading. The saturated, transparent colors provide crisp lines that won't show through even the thinnest sheets of paper. The pens are available in seven line widths, from 0.2mm to 0.5mm. The Pigma Micron series is ideal for a wide range of applications including technical drawing, artwork, writing and designing on acid-free paper, as well as creating Graphics and illustrations.