General description 7pcs Diamond Polishing Disc set is designed for dry polishing of various surfaces including marble, granite, stone, and concrete. These pads are flexible and can adapt to different polishing shapes, making them versatile for various applications. Technical specifications Diameter: 100mm (4 inches) Thickness: 3mm Workable Thickness: 1.5mm Available Grit: #100 Usage These polishing pads are ideal for dry polishing, eliminating the need for water, which makes them convenient and environmentally friendly.