Have you ever experienced the writing bleed out than you thought at the beginning? The cause of this is most caused by a slow stroke.
This product does not bleed through and is made to be thicker than normal.
While many products were difficult to bleed when used to create a darker product, the brush is difficult to tear, this product is thick but easy to write on.
It is a strong black color that is suitable for beginning writing.
It is a large capacity of 4.9 gal (1.8 L) size.
(From Amazon.co.jp)