I love this nail file! Everyone needs one. Trust me! This files my nails so smoothly and I even enjoy using it which is a plus because my nails never look ragged. Emery boards will make your nails look ratty, leave sharp edges if not used properly and not leave a smooth edge. With Emery boards, you can only file in one direction and with this one, you can file and smooth in both directions. It feels nice in my hand, is easy to hold and I'm not sure if it ever wears out. I had to buy a new one because I lost my old one.