Fine blue compound for final-stage buffing and polishing. Removes swirl marks and imperfections to leave a silky smooth, glossy finish on plastics, steel, iron, copper and most hard or soft metals. Ideal for stropping knives and razors to achieve an ultra-sharp, mirror-like finish. For best results use with loose-leaf or felt buffing wheels. Supplied in a 500g block for fuss-free application and simple storage. Apply little-and-often during use for best results. Fine blue compound for final-stage buffing and polishing. Removes swirl marks and imperfections to leave a silky smooth, glossy finish on plastics, steel, iron, copper and most hard or soft metals. Ideal for stropping knives and razors to achieve an ultra-sharp, mirror-like finish. For best results use with loose-leaf or felt buffing wheels. Supplied in a 500g block for fuss-free application and simple storage. Apply little-and-often during use for best results.