I don't wear a lot of nail polish on my hands, so I love to get those 4-sided nail buffing blocks to shine my fingernails. I went into Walreens to buy one of these and couldn't find one, but I did see this Revlon product, which offers four sides for buffing but also has 2 shaping sides. I did not find it to be a good product at all. Those emery board/shaping sides scraped across the surface of my nails several times, which was particularly annoying to me since I had bought the product in order to make my nails look better! Also, I was not impressed with the quality of the shine that the buffer produced. I have used various brands of these for years and I've always been pleased. This time, though, I paid more for a product that ended up being inferior.