Don't waste your money! It is NOTHING like what professionals use!!! It claims that it even works for acrylic nails and that is a straight up bold faced LIE! You can barely file natural nails with this thing. I paid money that I wish I had spent on something else! ANYTHING ELSE! lol But its TRUE! It is just SO weak! It doesn't have any strength or power in the motor at all, and you can literally stop the rotating file with two fingers. Then when you put ANY kind of pressure on your nail, it rotates so slow and will literally come to a dead stop on your nail as it has NO power or strength behind it! PLEASE don't waste your money!!!