Pigma Micron technical pens are perfect for comics and manga artwork, illustration, graphic arts, journaling, scrapbooking, drawing, record keeping, and more! The pigmented, archival, non-toxic ink is water-resistant, you can even paint over it without losing the detail of your line on delicate papers. Sakura Pigma Micron pens have set the standard for technical pens for over 25 years, Pigma ink is obtained from a single pigment to ensure colour uniformity and is resistant to sunlight and UV light damage. Pigma pens are sure to delight you with their versatility and archival ink for all your artistic expression!