I needed a fine, or sooft medium file, and my manicurist had this brand, but it was purple, all the other identifications were the same. This file, however, is quite rough, I have natural nails, and not having gel or other type of that type of buildup, it tears my nail.
I use these files to file my show dogs' nails. It's better than a scary electric tool that makes a drilling noise! These files, with their course grit, effectively and gently removes lots of length from my dogs' nails without any suffering on their part!