PROFESSIONAL BUFFER FOR SMOOTHING NAIL BEDS - Super fine grit salon professional quality nail buffer. Ideal for smoothing ridges and reducing imperfections. Washable and long-lasting. The 220 grit (black side) is suitable for gently buffing natural nails and smoothing any rough edges. The 400 grit (white side) is a super soft finishing buffer that perfectly adapts to the nail due to its flexibility. The padding on the buffer softens impact on your nails for kind, gentle buffing whilst the curved edge follows the natural curve of the nail.