TSUWAIRO [strong color] blue black
Fountain pen pigment ink with excellent water resistance and light resistance.
It does not bleed easily even when wet, and leaves a deep, vivid handwriting.
In addition, it is resistant to light, so it does not fade easily over time, making it suitable for long-term storage.
* Cannot be used with lacquer products, fountain pens for inhalation, and Justus 95.
*Cannot be used with the conventional CON-70N.