Some pens are flat and curved. Why?

Honey, that's an art pen.

Art pen is a kind of special pen to make thick and thin lines with the help of the inclination of the pen head. Widely used in fine arts painting, hard pen calligraphy and other fields, it is a handy tool for artistic creation. ? Fine brushwork in art has both general usage and special usage. It can write Chinese characters, numbers and letters like an ordinary pen. If you use it to design art works, put the pen tip upright and use it to draw fine lines; Lie down and draw a wide line with a pen tip. This is a function that no ordinary pen has! ?

Honey, if you have any questions,

Please adopt O(∩_∩)O~~