SHDIATOOL 4" Dry Diamond Polishing Pads(Grit 50) Products Included: 7 Pieces Diamond Polishing Pads(Grit 50), Application & Notice Application Dry Polishing Granite,Marble,Tile,Stone,Quartz and All Similar Materials.Used On Polishing Equipment, such as Polisher,Angle Grinder(High Speed is not recommended),hand grinding machine etc., Feature Dry polishing,working without water,convenient and less pollution Easy Pads Identification with Color-Coded Nylon Button High Gloss Finish on Granite, Quartz, Marble Edge Polishing Flexible, suitable for different shape polishing Pads backed with nylon materials for quick changing of disc Best Value, very competitive