Should I open the pen when I send it?

It's best not to unpack the package, to keep things intact, and if there is a price tag, it must be torn off.

Pens are generally used by scientists who have participated in scientific research or people who have made outstanding contributions to society. Because they are difficult to fade after writing, unlike some ballpoint pens or carbon pens sold in the market at present, they are kept for a long time, so giving pens will directly express their high respect.