Pen & Ink No-Shellac India Ink for Fountain Pens - This ink by Pen & Ink is made specifically for fountain pens. It does not contain shellac; an additive in many other inks that clogs fountain pen tips. This ink is permanent and lightfast, and can also be used with dip pens. It comes in a glass bottle that has a special opening for filling ink converters and for dipping pens without spilling. 30ml bottle.