Description 40ml bottle of Taccia Hokusai-Koiai Dark Indigo fountain pen ink in a glass bottle. Taccia Hokusai-Koiai ink is a dark indigo color.Having trouble deciding between colors? Use our Ink Comparison Tool to quickly and easily view different colors side by side.We offer Free Shipping on all orders over $50 for US customers, and for orders over $250 for our Canadian customers.
