"Rouge Caroubier" is inspired by the rich red color of the carob seed. They are typically grown in the Mediterranean region, and the ink inspired by them is a color just as beautifully exotic.
The J. Herbin ink cartridges are made for fountain pens and rollerballs. These standard short, "Snap in" universal cartridges fit most fountain pens or rollerballs. (Does not fit Sheaffer, Parker, Lamy, A.T. Cross, Pilot, Namiki, Sailor, Platinum or Aurora). Six cartridges are neatly and securely packed in cylindrical metal tins.