Description Herbin Bleu Nuit fountain pen ink is a deep, rich shade of blue-black and comes packaged in a 30ml glass bottle with an integrated pen rest. Herbin uses all natural dyes in their fountain pen inks, which is reflected in the very neutral pH of the inks. The inks are made in France, and have been created to be non-toxic, and smooth flowing in your fountain pen. 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 $59 for US customers, and for orders over $250 for our Canadian customers.