Description: 7pcs 5 inch 50-3000 Grit Diamond Polishing Pad Sanding Disc for Granite Concrete Marble Glass Specification: Material: Diamond + Resin Quantity: 7 pieces/set Granularity: 50#, 150#, 300#/500#/1000#, 2000#, 3000# Diameter: 125mm/5 inch Inner Diameter: about 20mm/0.78" Thickness: about 3mm/0.11" Fit for: Large model 150, model 180 grinding machine or edge grinding machine. Features: Flexible and practical, available for wet or dry polishing. Good workmanship, strong grinding force and smoothness. High efficiency, fast working, get good glossy luster. Accessory for grinder, polisher and other diamond tools for polishing. 7pcs in one set, Grits 50, 100, 150, 200, 400, 500, 800, 1500, 3000, 6000 meet various needs. Widely used for polishing, restoring, cleaning, grinding or shaping stone, crystal, ceramic stone, glass, concrete, granite, marble, etc. Package Included: 7 x Polishing Pads