You can fold it up and send it in a big envelope.
This crease is smaller, and the selection of works is better.
If the paper is hard, such as cardboard, clay gold and clay silver paper.
Either roll it on a drum or post it on a drum.
So there is no crease.
Pen calligraphy contest does not use pens.
All types of hard pens can be used.
I recently participated in the pen calligraphy competition with a signature pen.
Have the same effect
You can also win prizes.