Maunsell 4" Diamond Polishing Pad 11Pcs and 1 Backing Pad set is a great value, professional grade starter pad for concrete polishing, granite polishing and marble polishing. ★Package Include : 2 Sets of Grit #50,#100,#200 Pads 1 Set of Grit #400,#800,#1500,#3000,#6000 Pads 1 Rubber Backer ★How to use : Install the rubber backer onto the grinder. Attach the polishing pad velcro loop side to the backer velcro loop side, so they form a tight bond. Then you are ready to get started! ★Warning : Always wear protective eye wear and gloves while operating the grinder. 100% MONEY BACK GUARANTEE! Click “Add to Cart” right now!