Rengai Kunpū 5.0-chō (Boku-Undo)

Suitable for Kanji practice and final copy, suitable for Hanshi Paper and Gasenshi Paper.
The ink color is a light, light brownish black, and when dark, it becomes a subdued black with a hint of blue.
It can be used in a range of shades from normal to medium-thick, and as it ages, it can be used in a range of shades from very thick to light.