Can I write a composition in hard pen calligraphy?

Hard pen calligraphy can write compositions. Hard pen calligraphy is not strict with paper. A4 copy paper or white cardboard is commonly used for paper, and writing tools include pens, ballpoint pens, dip pens, pencils, plastic pens, bamboo pens, wooden pens and iron pens. Ink is the main carrier to express China's writing skills. It has the characteristics of convenient carrying, quick writing and wide use value.