Before the Qing Dynasty, all calligraphy was written with hard pen. Yang Hao's brush only appeared in the middle of the Qing Dynasty, and the pen-making technology was also developing.
People with good calligraphy have no special requirements for using a brush, but when they first learn calligraphy, they will still choose the right brush according to the different fonts. Double-stranded brush is the most commonly used brush for writing official script, which is a kind of brush between sheep hair and wolf hair. When writing, it is very elastic and absorbs a large amount of ink, which is very suitable for writing.
Sheep hair is made of the tail hair of Qingyang or antelope, which is more suitable for calligraphy with heavy brushwork. The written words are soft and have no strokes, and the ink absorption of sheep hair is relatively large. The strokes written are round and thick, and the wool is very durable.
Pay attention to the swallowtail of the silkworm head when using the pen in official script, so when writing, pay attention to writing the strokes in a shape similar to that of the silkworm head, and pick them obliquely to the upper right when receiving the pen.