Hard pen copybook patent

The description of the topic is too one-sided and does not specifically describe other characteristics of the object, so it is difficult to give an answer.

But when it comes to practicing English font copybooks, the main guess is that the subject is talking about Hengshui font, and the English letters in Hengshui style are clear and round, which is very popular among candidates and teachers. Many people are practicing Hengshui style.