Finesse Professional Nail Files 4 Way Buffer MA567 . The Edge 4-Way Buffer nail file specially designed for professionals or home use. Smooth, buff, and shine surfaces all in one! It's 4 Nail Files in One. Convenient and easy to use. Saves time! Create a smooth, high-gloss shine on your natural nails without polish. 1: Nail File Edge 2: Remove ridges 3: Smooths nail surface 4: For a Super shine without polish Smooth, buff, and shine surfaces all in one! Create a smooth, high-gloss shine on your natural nails without polish. Also great for polishing small acrylic pieces such as acrylic watch crystals and models.