In just a few minutes each week, you will enjoy perfectly manicured neat and immaculate nails. This file has a 9.5 degree of hardness and is made of aluminum oxide powder crystals (one of the basic materials found in rubies). It can be moistened for easier and more effective filing (especially for very hard nails), and you can file in both directions without hurting the nail. Because of its hardness, it will never go blunt—and it can be washed and sanitized.
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