I use a lot of Gel nail polish. The trick to keeping gel polish on is roughing up your nails so it has something to hold on to. Otherwise it peels off. So needless to say when I am not wearing any polish at all my nails look horrible. This nail shiner has done wonders for nails. I can now wear no polish at all and my nails don't look rough and unkempt. This takes the roughness off my nails and leaves them shiny. They look natural as if I didn't have anything done to them.
The file comes in a small plastic case to protect the file since it is glass. I can keep it in my purse and not have to worry about breaking it. There is a bit of a roughness to the file side but it is just enough to buff my nails to a awesome shine. The file is about 3 1/2 inches long.
I tried to show in the pictures the shine. The finger on the left is without the shiner.