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 ...
The hole in the caps of ballpoint pens is there to prevent choking accidents. Our vented caps comply with international safety standards ISO11540. These standards attempt to minimize the risk to ...
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 ...
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 ...
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