Brush is a traditional painting and calligraphy tool in China. Its bristles are made of animal hair, such as wool, beard and wolfsbane. The writing brush in Wang Xizhi's era was relatively simple, using wolf hair. It is characterized by combining rigidity with softness, and can flexibly control the flow of ink, so that the handwriting is rich in change and rhythm.
Wang Xizhi's calligraphy works are mainly regular script. Good at calligraphy, calligraphy, calligraphy and other fonts, especially running script. He has unique views and creative practice on the use of pen and ink and the change of modeling. He created a unique calligraphy style through different degrees of pen power, pen speed and pen use.
So when we mention "Wang Xizhi's calligraphy pen", we mainly refer to his calligraphy pen and his skills and style in the writing process.