Brand from Japan: Chantilly. It is a wooden type file.It is a disposable type, it is easy to use and convenient for use in travel destinations.How to use:Use the rough surface (pink) of the board to shape the tip of the nail.At that time, it is cut at a 45-degree angle to the nail and cut in one direction from the side to the center, and the curved part is arranged along the shape of the nail.Lightly rub on a fine surface (white) to finish the sharpened nail smoothly.If the particles on the file surface peel off and cannot be removed, replace them with new ones.