J. Herbin Ink Bottle - 30 MLCreated in Paris in 1700, The Jewel of Inks features a wide range of colors made for fountain pens. Herbin uses all natural dyes in their fountain pen inks. The smooth flow, fast drying time, and neutral pH make it a great option for fountain and dip pens. With dip pen, you can dip directly into the bottle. For use in fountain pens, fill your pen's converter. 30 ml bottle with screw top and pen rest Non toxic and pH neutral Water based Flows smoothly