Super fine grit salon professional quality nail buffer. Ideal for smoothing ridges and reducing imperfections. The 220 grit (black side with logo) is suitable for gently buffing natural nails and smooth out any rough edges. The 320 grit (plain black side) is a super soft nourishing buffer that perfectly adapts to the nail due to its exibility. It is very smooth and kind to the skin surrounding your nails. The padding on the buffer softens impact on your nails for kind, gentle buffing whilst the curved edge follows the natural curve of your nail. Washable and long-lasting.