YOU DON'T HAVE TO GO TO A NAIL SALON TO GET HEALTHIER, SMOOTHER-LOOKING NAILS. TO FILE YOUR OWN NAILS, ALL YOU NEED IS A NAIL FILE AND THE RIGHT TECHNIQUE. EMERY BOARDS ARE THE MOST BASIC NAIL FILE AND ARE A CHEAP AND EASY TOOL FOR FILING YOUR NAILS. THEY COME IN DIFFERENT GRITS -- THE LOWER THE NUMBER, THE ROUGHER THE GRIT, AND THE MORE OF YOUR NAIL IT WILL TAKE AWAY AT ONCE. COMPLIES WITH CPSIA. 18CM L X 2CM W