These professional grade 5" Wet Diamond Polishing Pads (Made with Premium Diamond Powder impregnated in Resin) are perfect for Marble, Granite, Concrete and Stones WET polishing. It is designed to provide high quality finish and glaze on straight or contoured surface provided used correctly. This set has 16+1 PIECES professional grade polishing pads Two Grit 50, Two Grit 100, Two Grit 200, Two Grit 400, Two Grit 800, Two Grit 1500, Two Grit 3000, Two Black/White Buffer and One Pro-Grade Rubber Backer with Brass Arbor 5/8" 11 Thread. By Default we ship Black Buffer. Please specify in checkout comments, if you need White Buffer.