Sakura Pigma Micron Pen Set 6-Colors .45mm Heritage Earth Colors These fine-point pens feature waterproof quick drying pigmented ink for permanency and true color reproduction. Ideal for graphics drafting illustration or even accounting! Experience smooth skip-free writing and crisp ink colors that leave consistent lettering and lines every time. The ink is acid-free chemically stable and fade resistant. This set includes Black Red Blue Green Brown and Purple.