Pelikan 4001 bottled ink for fountain pens, Royal Blue, 62.5Ml contains an ink formula that was developed over 125 years ago. Ink protects both fountain pen and nib. The bold color 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.