Great tool for fast, easy and classy manicure. It took me 15 minutes to complete my own manicure. I went to the local nail salon and I met all my unlucky stars, ether the specialist was new, or my blood vessel are to close to the surface, but I finished with half of my fingers bleeding and half of them were undone. I stopped at Ulta store and ask consultants what she recommends if I don’t want to do my gel nails anymore and she picked this 4 sided buffing block. Instruction on the back of the package is very simple. I started with 1 grade, took remaining gel out, moved to the next grade with perfectly smooth surface and last grade finished the job with perfect polished nails. It was very easily done. I can’t be happier. No more bleeding torches.