At present, ballpoint pen is a kind of ballpoint pen, but the ink in it is water-based. It can be simply understood as a straight liquid ballpoint pen. The water comes out smoothly, but if you choose paper, the cheap paper will be inked. Moreover, the refill capacity is mostly G2 refill, so the water-based ink really can't write a few words with such a small capacity. Sometimes you can't write because the ink is dry. I don't know why ballpoint pens are not particularly easy to use. Maybe it's because most of these things are used for signing. The price is high, the cost performance is low, and the only thing worthy of praise is the beautiful appearance and mature atmosphere. Most people who like ballpoint pens like their commercial appearance. You can insert a gel pen refill that you think is easy to use.