The DIA Plus 3-Step Diamond Polishing Pads are designed to achieve a high-gloss finish on granite, marble and engineered stone. These 4-in. pads feature a three-step process that reportedly eliminates the need for additional polishing compounds. They are made to be durable, easy to use and work with both wet and dry applications. They are available in the following grits: 50, 100, 200, 400, 800, 1500 and 3000.