ZIG Sumi ink is water-based pigment ink, quick drying, smudge-proof with alcohol-based markers and more traditional for calligraphy. Pair with Menso brushes and Kolinsky brushes or use with Pen nibs. Very smooth flowing sumi ink / Smudge-proof with alcohol-based markers / Suitable for both professional artist and amateur hobbyists / 60ml 2.02 fl oz