I chose a very fine pen, a little foolishly perhaps. I expected a calligraphy pen, but if the pen has the advantage of a fine pen, it is not biased. so no thick and thin strokes. Furthermore, the pen writes badly. it takes little ink and you have to press the pen to have a good trait. I tested against by that of a friend who took it bigger. it is not bad, but made a big gulp. difficult for small scriptures that little surprise. so pay attention to the sizes of feathers.