Phosphorescent Ink by J Herbin.
This unusual ink is invisible under normal lighting conditions, however, with the lights switched off, your writing will appear! The best results are obtained when using dark paper and either a thicker nib or a brush.
Only for use with dip pens and brushes, not for fountain pens.
Phosphorescent glowing green ik
Only visible in darkened lighting conditions
NOT suitable for fountain pens
To get started in Modern Calligraphy or for more tips, tricks and techniques pick up a copy of our book, 'Modern Calligraphy: A Step-by-Step Guide to Mastering the Art of Creativity'.