How to use bobby pins correctly

You know how we use bobby pins when styling our hair in a ponytail or when we have a lot of flyaways?

As anyone who has used a bobby pin knows, one side is longer and the longer side is straightened out, whereas

The other side is a bit short and wavy.

Usually, since it is easier to spread bobby pins when using them, people often place the short, wavy end upward, spread them open, and insert them as is.

You must insert the wavy part downwards, that is, toward the scalp, for it to be securely fixed.

It might seem like nothing special, but it definitely lasts a long time.