A 3ml sample of Taccia Hokusai-Koiai Dark Indigo fountain pen ink, labeled with the name of the ink brand and color, in a plastic ink sample vial with a dip at the bottom to allow you to easily get every drop. Taccia Hokusai-Koiai ink is a dark indigo color.

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Volume - 3ml

Vial Material - Plastic

Color Group - Blue-Black