Description File and shape your nails for a smooth flawless finish with the dual sided Manicare Emery Board. How To Use File from the side of the nails to the centre in even strokes. Always file in one direction, never back & forth. Use the coarse side to shape the nail & finer side to smooth the nail edge for a flawless finish. Expert Tips Avoid excessive filing of nail corners as they provide extra strength to the nail. Square or oval shaped nails are recommended.