The hair quality is different, the size is different, and the uses are different.
1. Different hair quality: the bristles of calligraphy pens are more elastic and harder; the hairs of traditional Chinese painting brushes are less elastic and softer.
2. Different sizes: the tip of the calligraphy pen is thicker; the tip of the Chinese painting pen is thinner.
3. Different uses: calligraphy pens are mainly used for writing; Chinese painting pens can be used for painting, outlining lines, dotting, rendering, etc.