What pen is used for hard-pen Chinese painting?

Hard-pen Chinese painting uses wooden strokes. Cut the wood into the shape of a pen with holes in it ~ ~

Hard-pen Chinese painting should be prepared with wooden pens of various sizes ~ ~ There are some on the market, but they are not easy to use. What really works is the kind you make yourself ~ ~ Choose your own wood and cut it into a pen.

I've already drawn it. It's interesting. You can try it ~ ~ but it can only be used in ink painting ~ ~