filing nails or nails filing?
They last for maybe 3 filing sessions until they wear out.  I file my nails every other week, so every 4-1/2 weeks... I'm on a new file.  Now, when you consider the fact that I am referring to my fingernails, not my toe nails or my pet's nails, and I am the only one using the files, they are the OPPOSITE OF LONG LASTING!  However, I gave one star because I pushed the worn out glass files into my table garden and they look quite lovely sticking out between my cactus plants.  Of course, as decorative mini gardens sticks, they are ridiculously expensive, but I hate adding to landfills.
Rating: 1 stars