Here’s something you may have wondered at some point. Why do most pen caps have a HOLE in them?
Some are tiny pinholes at the tip of the cap… while other pen caps have small vents. Well, wonder no more… those holes actually serve an important purpose. According to Business Insider, about 1,000 kids a year are rushed to the ER after swallowing parts of pens and pencils. And just in case a kid accidentally swallows a pen cap, the holes were added by manufacturers to help kids continue BREATHING, so they don’t choke to death!