Pigma was the first ink in the world to combine pigments and water. The fine tip makes this pen ideal for creating both technical and artistic drawings. The ink will not bleed through paper. Unique Pigma ink is permanent, colour, water, and light-fast. Writes on virtually any porous surface, extremely suitable for use on tracing paper. The ink will not bleed through paper. Pigma ink is suitable for filing purposes; and has good archival qualities. Also extremely suitable for hobby applications like scrapbooking and cardmaking.