1, double brush. Doubled both brush is a kind of brush which is a mixture of wolf hair and wool. Its hardness and elasticity are between wolf hair and wool. Usually suitable for beginners, because it is easy to master, but also suitable for writing regular script, official script, running script, flower-and-bird painting.
2. Wolf. Wolf hair is a kind of hard brush, which is mainly made of weasel tail hair. This kind of pen is flexible and suitable for writing running script, cursive script and other fonts, as well as landscape painting.
3. Wool. Yang Hao is a soft brush, mainly made of goat hair. This kind of brush has weak elasticity, but strong ink storage ability. Suitable for writing official script, running script, cursive script and other fonts, and also suitable for landscape coloring. Yang Haobi feels warm and moist, which is suitable for expressing the roundness and smoothness of calligraphy.