a small, stiff strip of paper or cardboard, coated with powdered emery, used in manicuring.
a strip of cardboard or wood with a rough surface of crushed emery, for filing one's nails
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Attach a nail file or emery board to a piece of wood, or tape it to the countertop to stabilize it for one-handed use.
The web site is advertised on pens, emery board and mugs that are freely distributed.