These straight adhesive nail files are ideal for shaping and refining natural nails, as well as correcting imperfections in acrylic or gel nails. The files feature 2 sides with different grit hardness, allowing you to create a smooth and well-groomed surface on your nails. The grit hardness matters: the higher the grits, the finer the texture, providing a softer feel during use. Conversely, with lower grits, the file offers a coarser and rougher texture. The package includes 5 pieces to always have available files on hand.