Traditional shellac based india inks used for drawing, painting techniques and calligraphy - bright, transparent colours*. As with all traditional inks the lightfastness/permanence varies and should be a consideration where archival properties are a factor - for example when creating artwork for sale.
* White, Gold & Silver are opaque not transparent. The LIQUID Black is the only ink in the range that is watersoluble once dry. For a waterproof black choose BLACK indian ink.