Pelikan 4001 Bottled Ink for Fountain Pens, Royal Blue, 30ml, 1 Each (301010) Ink formula developed over 125 years ago protects both fountain pen and nib Ink produces clear line definition with an even flow For traditional Pelikan fountain pens and many other brands with plunger mechanism and converter Tip the bottle on its side to fill fountain pen with every drop of ink Made in Germany