This set includes 10pcs wet diamond polishing pads and 1 piece backing pad. It’s suitable for polishing granite, concrete, marble, stone, tiles, etc. Features: Made of high quality diamond powder impregnated in resin. Using special binding agent. Strong grinding force and smoothness. Polish quickly and use for long time. No color left on stone after polishing. Perfect for granite, concrete, marble, stone, tiles, etc. Specifications: Backing Pad: M10 / M14 (Optional) Color: As Shown Material: Diamond Powder Impregnated in Resin Grit: 50#/100#/150#/300#/500#/800#/1000#/1500#/2000#/3000#(Coarse to Fine, 1 piece each) Outside Diameter: 80mm / 3" Internal Diameter: 10mm / 0.4" Thickness: Approx. 3mm Package Size: 10 * 10 * 8cm / 3.94 * 3.94 * 3.15in Package Weight: 259g / 9.13oz Package List: 10 * Wet Polishing Pads 1 * Backer Pad Note: 1. Please allow 1-3mm error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of