Review (1/5): The magnets are not strong.
I was really excited to use this item, but it let me down. The magnets are not strong at all, you have to hold the diamond and the top piece as you try to do anything on it. I even bought the putty to go with it and that didn't work either, the nail was not sticking to the putty. These two items are in cahoots to take your money. DON'T BUY!