Screwing in a cotter pin takes a lot of dedication. But the pens are fine. Exactly what I expected. You open the package. Due to the poor quality of the case, the pins fused during shipping. The best advice is to spend a few minutes separating them and tying them together with a rubber band or a small ziplock pouch to use with the smaller needles in the box. Pin rating 5 stars. Hull rating 2 stars. Counting on the case is a quality item and the problem is easy to solve.