It is a 7-surface nail polishing file to file, polish and clean your nails.

Step 1 Pink Surface: You can shape your nails with its hard surface.

Step 2 Purple Surface: You can do final shaping with its medium hard surface.

Step 3 Orange Surface: You can clean the nail edges with the soft hard surface.

Step 4 Green Surface: You can clean and equalize the surface of your nails.

Step 5 Black Surface: You can file the nail surface and remove the residue.

Step 6 Gray Surface: You can apply it to the nail surface for natural polishing.

Step 7 Light Pink Surface: You can polish your nails.