The double-sided replacement Straight Mix 180/240 grit nail files are suitable for nail care needs. These paper files with a straight shape allow precise shaping of natural nails and correction of any imperfections on acrylic or gel nails. One side of the file has a hardness of 180 grit, ideal for coarser and rougher areas, while the other side has a hardness of 240 grit for smoothing and finishing. The package contains 50 pieces, providing an adequate quantity for professional or home use.