This Review Title is Seriously poor knock off of the original and the content is: Product is not 6 sided, but 7. Grade labels are mixed up and mostly too coarse for nails. Grade labels are hard to read (black on Dark blue. Seriously poor knock off of the original. But cheap enough to keep anyway..There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.