Chinese calligraphy
Ink brushes () are paintbrushes used in Chinese calligraphy as well as in Japanese and Korean calligraphy which both have roots in Chinese calligraphy. They are also used in Chinese painting and other brush painting styles. The ink brush was invented in China around 300 B.C. Together with the inkstone, inkstick and Xuan paper, these four writing implements form the Four Treasures of the Study.