Bought with my own money - Disposable dental floss

This is disposable dental floss that I bought with my own money.

It's a pack of 500.

It's old, so I've used it all up.

I like it because it is easy to use.

As far as I remember, I bought it for a very cheap price.

It probably wasn't 10,000 won.

My dentist told me that if I don't floss, I'll go to my grave early, so I started using it.