If you are going to mount the piece, please wait a sufficient number of days after production before doing so.

The ink residue at the base of the brush does not harden easily, making it particularly suitable for caring for school brushes.

It does not contain any harsh chemicals or salts that may damage the brush, so it can also be used with natural bristles.

The ink color is a strong pure black.

Our company was the first in Japan to develop ink that returns to its original state even when the brush hardens.