SUMI (Ink Sticks)
This series can be called the root of hyakusenboku. Usually, as for Japanese ink sticks, kozumi (deep black ink) is beautiful and as for Chinese ink sticks, usuzumi (light black ink) is beautiful whereas Daiwagaboku has both advantages of Japanese ink sticks and Chinese ink sticks. So it is possible to express a wide range of black tones with this Daiwagaboku ink stick. The older the ink stick, the richer taste it has.