In fact, any kind of pen is fine, as long as it drains smoothly, but the one I see most often used by our teachers and students is the Hero 329, which has a straight tip or a curved tip (329 sometimes leaks , but it is generally easy to use, and can be filled with carbon ink, so you don’t feel bad if it breaks). When choosing a sketch pen, don’t buy a very heavy steel pen. Buy one with a plastic rod. You need to use a stylus pen for drawing, and of course it can also be used for sketching, disposable or water-filled (that is, a box of red rings costs more than 200, but it is more recommended to buy Staedtler single 0.3 and 0.5 each on Taobao, and finally do the math No more expensive than disposable ones). There is also a disposable hook-and-line pen from Penton, but it is very expensive. It has a duckbill-shaped tip and has good performance. You can buy one and try it occasionally. I don’t know if the person who asked the question is a freshman. In fact, we all wanted to buy pens for sketching during our freshman year. In fact, after our sophomore year, we basically used ordinary gel pens~