BUYTUS 3" 4" 5" 6" Diamond Polishing Pads Dry and Wet Buff Disc for Sanding Marble Granite Concrete Abrasive Grinding Set 80mm-150mm(200,6 inches). Diameter: 3\"(80mm), 4\"(100mm), 5\"(125mm), 6\"(150mm); Grit: 50#, 100#, 200#, 400#, 800#, 1500#, 3000# Working layer Thickness: 1.5mm; Suitable for different RPM. Optimal RPM: 2200-4500 RPM. Material: Diamond powder, Resin powder USE: The pads can be Wet or Dry use, we recommend Dry polishing for ideal results Ideal for polishing Granite, Marble, Concrete, Stone, Quartz, Countertop, Travertine, Terrazzo, Tiles etc; Aggressive and Durable made with quality Diamond Powder impregnated in Resin. Farbe:200