Do you know why the zipper always has a small hole?

Zippers are present in many everyday things of people, from clothes to bags, . Almost everyone considers that a zipper with a small hole is obvious and has no use. both. This is completely wrong, anything that exists also has its reasons. Let's learn about the benefits of the small hole on the keychains, which will surely surprise you.

The first benefit of this hole is to save raw materials for manufacturers and to make machines easier to fix in the process of making products.

Anyone who has ever had an "accident" embarrassed that the zipper of jeans was washed down a few times a time in his life. Now you don't have to worry about falling into this "misery" situation again thanks to the following trick. You just need to use a round hook on the key chain, hook into the round hole on the key chain and insert it into the button before installing. So you can be assured of your pants lock.

Have you ever wondered, why some items such as backpacks, bags often have 2 zippers in one compartment. Is it too redundant and wasteful? The answer is no, manufacturers are not so generous. They do this to help you secure your property, with only a small lock you can lock two zippers together to avoid theft.

This is an extremely useful use for women who want to extend the length of a skirt on the back without anyone nearby. You just need to thread a small wire through the keyhole and pull it.