... polishing 1. 90% Italy quality 2. amazing gloss 3. long life 4. high value Frankfurt Abrasive Stones for marble polishing, widely ... very High efficiency4. Fine Glossness and Excellent LIfespanSize 105Grit#16, #24, #36, #46, #60, #80,#120, #180, #220, #240, #280, #320,#400 ...