Fude-no-Tomo 1.0-chō (Boku-Undo)

This ink is for practicing kanji and is suitable for writing on washi paper.
From normal to thick ink, it can be used for extra thick ink as it gets older, but is not suitable for light ink.

Kanji practice
Pine soot ink
Slightly cloudy light brown-gray black/Thick ink: Thick black