Sure! Here’s an article explaining the smart design behind pen caps with holes:

The Truth Behind Pen Caps with Holes: A Smart Design with a Big Purpose

Have you ever noticed the small hole on the top of your pen cap and wondered, “Why is that even there?” At first glance, it might seem like a trivial detail or a simple design choice. But this tiny hole actually has a very important and clever purpose—and knowing the truth behind it might just make you appreciate your everyday pen a bit more.

The Common Mystery: Why Do Pen Caps Have Holes?

Most modern pens, especially ballpoint and gel pens, come with caps that feature a small hole near the top. This design isn’t an accident or just for aesthetics—it’s a safety feature developed with thoughtful intention.

The Real Reason: Preventing Choking Hazards

The main purpose of the hole is to reduce the risk of suffocation if someone accidentally swallows the pen cap.

• How does it work?
  If a cap is accidentally swallowed and gets lodged in the throat, the hole allows air to pass through, providing a small but potentially lifesaving airflow.
• Why is this important?
  Children and even adults sometimes put objects like pen caps in their mouths or accidentally swallow them. The hole in the cap can help prevent fatal choking incidents by allowing some air to flow through.
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