I happened upon this little beauty by chance. CVS was having a special where you purchas $10 in Revlon Products you would reveive $7 in ExtraBucks, and I had my eye on an eyebrow grooming kit for a bit, but it was only $7. To make up the difference I just grabbed this file. It seemed like it'd be worth a try and I did get $7 back. I never thought this would be so awesome. The file claims that it is intended to be used in a back and forth sawing motion, which is against everything we've been told about filing our nails. This product claims that you file one way to file and pull it back to smooth the edge. It works so well! It files quickly and the nail edges are extremely smooth. When using a traditional file, I would normally use a filing motion downward at a 90 degree angle to get rid of the nail that is left hanging on the underside of the nail. So without further ado, here is the Revlon File-n-Smooth.