The double sided buffer smoothes and evens out the nail surface - creating an outrageous, mirror-like finish. The tool promises to create 400% more shine than bare nails. To be honest, I couldn't tell you the difference between a 100% and 400% increase in shine, but I will say that it looks like I'm wearing a clear topcoat on my nails. And this was achieved in about three minutes (all 10 nails) - no drying time necessary. What I also love is that you can use the white side on polished nails - to restore shine when your mani is looking a lil murky.
Revlon Crazy Shine Nail Buffer retails for $3.99 - but right now it's on sale at CVS for $2.99.