Manufactured from high quality materials to ensure long lasting performance. 2 distinctive finishes: a coarse side for shaping nails and a finer textured surface for smoothing nails. 10 boards. Instructions Nails should always be filed when dry to insure smooth edges. Place the emery board under the edge at a slant and file in one direction only. Back-and-forth filing may cause cracking and splitting. For best results, nails should be filed into an oval shape following fingertip contour. Filing into a point weakens the nail. DisclaimerThe product descriptions and instructions provided by vitabox.com are for informational purposes only and are qualified in their entirety by the information available from manufacturers of the products. You should carefully read all product packaging, and contact the manufacturer with any questions before using a product. While we endeavor to ensure that product descriptions are current, manufacturers sometimes change their products. We are not liable for inaccuracies or misstatements about products. We do not provide medical advice or recommendations. You should not use the information provided by vitabox.com for diagnosing or treating a health problem or disease. If you have or suspect that you have a medical problem, immediately contact your health care provider. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration or any other government agency and are not intended to diagnose, treat, cure, or prevent any disease.