What pen did Tong Xin use to practice calligraphy in the third grade?

Penumbra pen is the king of hard pen calligraphy, and it is difficult to learn hard pen calligraphy without a pen. Manuscript newspaper is a comprehensive practical activity, which can cultivate students' hands-on ability and brain ability, stimulate students' innovative consciousness and curiosity, and also improve students' comprehensive literacy in information collection, art design, calligraphy and writing.