Description: 17pcs 4 Inch 30-800 Grit Diamond Polishing Pads Set for Marble Granite Stone Concrete. Features: 1. Diamond Polishing Pads, perfect for cleaning and polishing. 2. Dry use for polishing Marble, rice Yellowstone, ceramic stone, ceramics, glass, etc. 3. Commonly used in stone processing and used for stone renovation and stone grinding etc. 4. High efficiency, surface polishing, environmental protection, non-toxic. 5. Strong and durable, good wear resistance, and practical. 6. Can be used with a polishing compound to produce a smooth finish. 7. Great for general polishing and able to work with semi-rough finishes to refine them to a smooth luster. 8. Easy to use. Specifications: Material: Diamond Powder+Resin Powder; Diameter: Approx. 10cm/4 inch; Grits: 30 50 100 150 200 300 400 500 800 1000 1500 2000   3000 5000   6000 8000 ; Type:A: 10 Holes Backing Pad Backer+16 Pcs Diamond Polishing Pad; B: 14 Holes Thick Backing Pad Backer+ 16 Pcs Diamond Polishing Pad; C: 14 Thin Holes Backing Pad Backer+ 16 Pcs Diamond Polishing Pad; Applicable Models: Marble Machine, Bench Cutting Machine, Angle Grinder, etc. Cutting Objects: Ceramics, Ceramic Tiles, etc. Quantity: 1 Set × Dry Diamond Polishing Pads Set; Package Included: (optional) Type:Quantity; A: 1 X 10 Holes Backing Pad Backer; 16 X Diamond Polishing Pad; B: 1 X 14 Holes Thick Backing Pad Backer(Thickness 2.8CM); 16 X Diamond Polishing Pad; C: 1 X 14 Thin Holes Backing Pad Backer(Thickness 2.3CM); 16 X Diamond Polishing Pad.