Its safety is excellent, it doesn't wear out, its portability is very good and you can take it anywhere, its operation is very practical, and its precision is very good.

I loveeeee this nail file. It’s so easy to use. It files so well it turns the residue into a sandy dusty consistency😭 one purchase will last you forever, saving you a lot of money in the long run. It leaves my nails sooo sharp! It is glass, so you have to be careful when storing and handling. It’s so nice my sister purchased one for herself!

I've only used cardboard files before, but I heard good things about glass files and O.P.I is a good brand. One of the first thing I did was to drop it though and the tip broke off, but it's glass so It's not that weird. It's still very usable! Since l've used cardboard files this was a HUGE change! Had to use one file per nail and throw it away then. This one is so durable, had it for almost a year now and it's still just as good as when 1 first got it. At first it was very uncomfortable, like skratchin your nails on a blackboard, but got used to it quickly and my nails doesn't flake as much now as before and it's efficient too. Price is really good and it'll last.. well at the same time I wrote this review I put my elbow on it and broke it in two.. So time to buy a new one, and not have it in the couch...