In terms of specific performance, it can be divided into three types: soft millimeter, double brush and hard millimeter. Wool quilt belongs to soft hair, with soft writing and high water absorption, which is suitable for spot mosaic and weak water dyeing, such as large pen and large moss spots. Wolf hair is hard and elastic, which is conducive to sketching (or drawing the trunk of oblique stone), such as Ye Jin's pen, clothing pattern, large and small pen, plum blossom, big orchid bamboo and so on. There are wolf hair and wool in "Double Brush", and the brushwork is both soft and hard, such as a big white cloud with clouds in the middle, and you can draw flowers by clicking leaves.
Now the writing brush is also expensive. If children are just beginning to learn, Chinese painting uses big white clouds and calligraphy uses wolf hair.
Hope to adopt! thank you