5 pounds of #61 Rapid Polish (a sub micron aluminum oxide polish). This package incorporates 5x as much grit and polish as being the standard package for about three.3x the cost. More Information. Warning: Do not dispose of used grit, polish or rock slurry down a drain. Safety Data Sheet https://siliconcarbideprotectingt38158.bluxeblog.com/61061409/indicators-on-silicon-carbide-grinding-wheel-bunnings-you-should-know