The writing brush ( Chinese 毛筆 / 毛笔 , Pinyin máobǐ , Japanese. 筆 , fude , kor. 붓 , but ) is the most important tool in Chinese calligraphy and painting . Together with the paper , the stick ink and the rubbing stone, it is one of the four treasures of the scholar's room .
The writing brush is much more elastic than the western paintbrush and has an elastic core made of weasel hair, which is covered by the longer goat or hare hair. That is why it always ends in a hair-fine tip, which forms again when you lift it.
The posture is also different from the brush posture of a western painter. The handle, which is usually made of bamboo , is always held perpendicular to the writing or painting surface, which is always flat on the table. When writing, neither the fingers nor the wrist are moved, but the writing and painting movements come from the shoulder and elbow. Ideally, the hand should be able to hover freely over the paper. The ink lines are modulated by pressing down or lifting the brush, change in width and thus obtain their characteristic expression.