A modest but essential accessory, the safety pin hides an unexpected feature: a discreet perforation near its mechanism. Discover why this tiny, often overlooked opening makes this object even more ingenious than it seems.
A seemingly trivial detail, but crucial in reality:
Think about it: when you close a safety pin, that satisfying little “click” and perfect resistance aren’t just a matter of chance. They’re the result of subtle mechanical ingenuity , concentrated in one tiny element: that discreet hole near the spring .
Positioned next to the spiral part, it might seem incidental. However, it is essential to the proper functioning of the pin . Far from being a defect or a decorative fantasy, it is a clever technical solution that ensures its reliability.
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