The nibs on these pens are not quite the same size as the nibs that the pen is designed for so they do not flow very well, but i brought these with the intention of removing the nibs qnd using them on other pens so i am perfectly happy with my order
I received black pen instead of clear pens, probably because clear pen were not available in the ordered size, and another extra fine clear pen as gift. The pens do their job do I'm happy with that. Rocket fasy delivery to France (7 days!).