The Functionality 7 step Nail Buffer smooths, shapes and shines nails leaving them looking healthy and glossy. Use step 1, 2 and 3 to shape the nails. Always file from the edge to the centre of the nail using long, smooth strokes. Use step 5 to smooth the nail edge. Use step 6 to shine and buff the nails. Once a month use step 4 to remove ridges followed by step 7 to shine the surface of the nails.