Surprise with the great use of small details on utensils

On some familiar everyday items with very small details appear, but most of us do not pay attention to such as: small holes on keys, small pockets on jeans, holes on the back of Iphone . And Of course, we also ignore their extremely important and important uses.

Let's learn about the useful uses of small details on familiar objects in the house to have the most useful use for them.

Small arrow next to the gas tank sign

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Not all cars have this symbol. Some manufacturers add this small arrow to inform the driver of the location of the gas tank on the vehicle to help new car buyers or borrow someone else's car. When the arrow next to the gas tank turns to the right, the fuel tank cover is located on the right side of the car and vice versa.

Why does the clicker have this detail?

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If you accidentally mistakenly press the pin to click on the paper from the outside, this detail will help push the pin out easily without being pressed on the hand and without tearing the paper.

Serrated holes and sections at the end of the tape

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A small hole is used to hook a ruler into a nail to fix one end while you conduct the measurement alone.

The serrated part helps you mark when there is no pen there.

The small hole is under the lock

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When the lock is dry or stuck, difficult to use, you can put oil into this small hole to make it work more smoothly. At the same time, this small hole will help rainwater escape out when it is raining so the lock does not rust affect its life.

Small square or circle on the phone battery

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In some batteries, a small square or small circle appears to show the humidity index. It will change in color from light to red if wet.

Small holes on the back of the Iphone

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The hole between the flash and the camera lens is actually a second microphone that works to reduce background noise while making your speech clearer when talking or recording.

Beer bottles are brown or dark green

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According to scientists, dark green or brown beer bottles can filter out the light that affects beer quality.

Small holes in the sink

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When you forget to lock the water faucet but the drain is sealed, the water will drain down the hole of this small hole to help limit the water from draining.

The water bottle is usually closed with a round cylinder

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Since carbonated drinks such as soda, beer . will affect the shell, they should be designed cylindrical for better bearing capacity. Besides, this design also helps users to easily use the product more.

Rectangle paper box with milk

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Why do manufacturers not contain milk in glass bottles but choose paper boxes? Simply because glass does not have high thermal insulation, milk will quickly deteriorate if left for many days. The box is designed in rectangular shape to reduce weight, easier to neatly stack to reduce transportation and storage costs.

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