Pop open a fresh box of Bic Cristals and you’ll come face to face with a bunch of holes. As an everyday function, that hole in the pen cap equalizes pressure so that uncapping and capping the pen ...

A viral Instagram video about pen lids is blowing some users’ minds while other smartypants say it’s recycled information. Content creator Zack D. posts “A Collection of Things That I Find Interesting ...

Zack D shared an explanation about why the detachable caps feature holes as part of a series he created called, “A collection of things that I find interesting”. The clip, shared on his Instagram and ...

The idea of perforating the caps of pens appears to have started in the United Kingdom, where a new safety standard was adopted in 1990 (BS 7272). Between 1970 and 1984, nine children in the United ...

Zack D. Films says the pen cap has just enough space to get lodged into someone's airflow if the cap gets stuck in the throat. Instagram You’ve probably never given the tiny hole in the cap of your ...