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Everyday things often have hidden functions that you’ve probably never noticed! For example, the little hole in pen caps isn’t just for decoration—it’s there to prevent choking if someone accidentally swallows it. Have you ever wondered why some backpacks have those diamond-shaped patches with slits in them? They’re designed to hold extra gear, like ropes or water bottles. And that tiny pocket inside your jeans? It was originally designed to hold a pocket watch, but now it’s great for small items like headphones. Even aluminum foil boxes have hidden tabs on the sides to hold the roll in place while you tear off a piece. These clever details make life easier—you just have to know they exist! What other hidden functions have you noticed? #a4 #space #360 #interestingfacts #howtoloseweight #interesting #documentaries #spacephenomena Animation created for Bright Side. ---------------------------------------------------------------------------------------- Music: Epidemic Sound https://www.epidemicsound.com/ Subscribe to AdMe: http://goo.gl/DgUonf ---------------------------------------------------------------------------------------- Stock materials (photos, videos and others): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ---------------------------------------------------------------------------------------- More cool articles and videos on http://adme.ru/