Retractable Nail File Keychain

Convenient

With it on my car keys, I always have a nail file when I need it.

I like that it's compact. The strap is stiff and not made to fit the wrist, but makes it easy to find in a purse. The file is metal, wished it was glass, but I do understand the reasoning. I think it will be great in an emergency, which is why I bought it. It's well worth the price.