Unfortunately, the NuNale is a disposable product of cheaper chrome plastic. If you, like me, constantly in your pocket carries around with him, the Chrome flakes quickly. If necessary, then there is at the edges even the risk of unpleasant injuries.
The principle of a round file is of course functionally top, so even 3 star, but the quality is far from being closer to that of a normal ordinary nail file made of metal.
