J. Herbin Fountain Pen Ink [30ml] Colors:Bleu Myosotis It fits standard international converter

It fits standard international converter openings and the TWSBI Diamond series fountain pen barrels

pH neutralWater based

This pen uses a screw design

MD Notebook Light is also slim and light enough to fit two volumes of the A5 size in the MD Notebook Cover

J. Herbin Fountain Pen Ink [30ml] Colors:Bleu Myosotis It fits standard international converterJ. Herbin is the oldest name in pen inks in the world. M. Herbin created The Jewel of Inks in his shop on the Rue des Fosses Saint Germain in Paris in 1700. Herbin uses all natural dyes in their fountain pen inks. This natural composition is reflected in the very neutral pH of the inks. Each bottle of 30 ml 1 oz ink is elegantly labeled and has a pen rest. They are known as D bottle pen inks. The D refers to the old French unit of measure la Demi