what is it? Filed Away™ is a filing kit designed to maintain perfectly smooth nails. what does it do? Laser-etched with thousands of micrograins, our nanoglass file enables precise shaping and smoothing, while protecting nails from breakage by helping to seal and compress keratin layers. An additional 3-sided buffer smooths and flawlessly polishes edges and surfaces to your desired shine. why is it the best? Designed to be durable, reusable, washable and long-lasting, Filed Away™ is better than all those disposable files and buffers you keep buying over and over again. why will you love it? Because now you can wear those toe-showcasing shoes you've been avoiding. HOW TO USE: Gently move the nanoglass nail file in one direction across the top and edges of each toenail to file nails down to the desired length and shape. Then use the buffer in the order of the 3 steps indicated on the block to leave the nail smooth with a beautiful shine.