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From the ink masters at J. Herbin, say hello to the rainbow of fountain pen cartridges. These are standard international snap-in cartridges, with eachcylindrical metal tin containing six cartridges. Fits most fountain pens and e-rollerballs, except Waterman, Sheaffer, Parker, Lamy, A.T. Cross, Pilot/Namiki, Sailor, Platinum, Aurora, Fultz and Nakaya.

Available in 20 colors.
Non toxic and pH neutral
Water based
Flows smoothly and is fast drying
All natural dyes