Finer pens for fast drawing and thicker pens for slower speed 快速绘画时较细,放慢速度较粗的筆
It is used in drafts and checkboxes, which is friendly to protecting the wrist
草稿和勾选环节使用,对保护手腕友好
Finer pens for fast drawing and thicker pens for slower speed 快速绘画时较细,放慢速度较粗的筆