1, the tip of the small brush is about 2. 1cm, and the diameter of the tip is about 0.5cm, which is suitable for writing small characters the size of coins.
2. The medium-sized brush pen tip is less than 5cm, and the diameter of the pen tip is less than1.2cm. This brush is usually used to write medium-sized characters, that is, it is suitable for Mi Zige (Mi Zige is usually 9cm- 12cm square) paper.
3. A large brush with a front diameter greater than 5cm and a front diameter greater than 1cm is also considered a large brush, and it is similar to writing couplets at ordinary times.