The holes at the end of ballpoint pens are one of the most noticeable objects we see every day but rarely give much thought to. Most, if not all, pen caps have a hole at the end of the cap, whether it be the BIC pen that you may have seen your father use or the Reynolds ballpoint pen that we have grown up with.
1. Why is it there in the first place? Is it a mistake?
It’s no mistake. In 1991, manufacturers like BIC started making ballpoint pen caps with a little hole at the top, prompting people to ponder the hole’s meaning and potential utility.
Here’s the deal: the hole in the cap not only protects the ink in the pen, but it also protects the user from any safety threats.