We have developed and adopted a new ink that absorbs moisture in the air. Due to changes in humidity, the pen tip does not dry because it repeatedly absorbs and evaporates water and keeps it in an appropriate state. (*)
* Our test: No blurring under conditions of temperature 20 ° C and humidity 60% (52 weeks with the pen tip stored) Be sure to store the pen tip after use.

Since it is a knock type that can be used immediately, it is easy to change the pen. You can choose a lot of favorite colors from 36 color variations and write happily.