Ink brush
Ink brushes (simplified Chinese: 毛笔; traditional Chinese: 毛筆; pinyin: máo bǐ) are used in Chinese calligraphy. They are also used in Chinese painting and descendant brush painting styles. The ink brush was invented in China, believed to be around 300 B.C. Together with the inkstone, inkstick and Xuan paper, these four writing implements form the Four Treasures of the Study.
Types
Brushes differ greatly in terms of size, texture, material and cost.
Stalk: Usually normal bamboo, exotic brushes instead may use materials like gold, silver, jade, ivory, red sandalwood or spotted bamboo.
Hair source: Normally the brush is made from goat, Siberian weasel (黄鼠狼 huángshǔláng, yellow-rat-wolf), pig, mouse, buffalo, wolf and rabbit hair, while exotic ones can be made from tiger, fowl, deer and even human hair (from a baby's first haircut, said to bring good fortune while taking the imperial examinations).
Hair texture: soft (軟毫 ruǎnháo), mixed (兼毫 jiānháo) or hard (硬毫 yìngháo) hair. Certain textures are better for writing certain styles than others are.