She likes practicing calligraphy. It would be best if you gave her a pen. It is of great practical value, and she can feel that you have put your heart into it.

as the saying goes, courtesy is light and affection is heavy, so don't pay too much attention to things with price.

If it's too expensive, she will be under great pressure. Imagine that the fire will give you a gift next time. How should she choose? Is it expensive to choose? Isn't this a comparison?

childhood friendship is the purest, and it will not change after many years. Please cherish it. Don't worry about one or two gifts. I wish you study hard and make progress every day.