Nail care items I bought with my own money

I consistently file my nails with this.

It becomes shiny as if it had been polished, and since it is portable, I take it with me when I travel.

It is a nail buffer made of tempered glass, so it is great because it can be used semi-permanently.

They say it isn't sharp, so it can be used well even when newborns are afraid of having their nails trimmed.