There are many classification standards for brush, such as the size of brush, the shape of brush, the raw material of brush and the length of strokes.
According to the elasticity of brush, it can be divided into soft brush, hard brush and double brush.
According to the common size of brush, it can be divided into lower case, middle case and upper case. The bigger ones are screen pen, couplet pen, bucket pen, pen planting and so on.
According to the shape of the brush, it can be divided into round hair and pointed hair.
According to the stroke length, it can be divided into long front, center and short front.
According to the raw materials of the brush, it can be divided into: goat hair, ferret tail hair, rabbit hair, chicken feather, goat hair, moustache, bristle, moustache, rat tail, tiger hair, wolf tail, fox hair, deer hair, musk hair, badger hair, cat hair, otter hair, orangutan hair and so on.