Review (1/5): Description was a lie, or I got a counterfeit product.
Either the product I received was a knockoff or the description is an absolute lie. NONE of the files I received had buffers, both sides on each were nail files. As in, there was GRIT on both sides, and the grit was an insane intensity as well. It was a large enough grit on the colored sizes that it reminded me of the sandpaper I've used to STRIP HARDWOOD FLOORS of varnish. The opposite gray side was a finer grit, sure, but it was still a higher grit than I've seen on ANY reputable or USABLE nail file. Absolutely useless. I've used nail buffer/file combos before and was so excited by the price on this set, however - SAVE YOUR MONEY.
I've read about Amazon being plagued by counterfeit products, so maybe that's what I received instead of an actual file/buffer combo set. Regardless, don't risk your dollars on a gamble and HOPE Amazon sends you the real deal. Go elsewhere for your nail care. Your fingers will thank you.