Ebonite in black and blue-green (in “ricchiku”or bamboo style).
The image of color: The wind blows the bamboo forest and it comes off. It is time when people feel the strength of vitality of bamboo.
Ebonite is a type of resin that has a very long history. It is considered the first “synthetic resin”to become widely used from 19th century. Ebonite, made from ruber and sulfur, is very firm and strong to acid, and changeless, so that is good material for fountain pens.