Bengbu calligraphy traditional Chinese painting training

I think the difference between wool quilt, wolf quilt, double wool quilt and white cloud brush lies in the material and characteristics of bristles. Wool quilt is soft and absorbent, suitable for Chinese painting smudge; Wolves are hard and have poor water absorption, which is suitable for calligraphy sketch; Double-sided brush has both advantages and is suitable for fine painting and large-area painting. Baiyun brush has different uses according to the manufacturer's settings.