How big is the soft pen calligraphy paper used to celebrate the New Year's Day painting and calligraphy exhibition?

Usually it's 4.

Sometimes there are special times, such as:

In 2007, I used No.2 paper;

In 2005, No.8 paper was used.

This also depends on the situation

I suggest you make a consultation call, which will be more certain.

Hope to adopt,

You do well here!

O(∩_∩)O