General description These 4"/100mm diamond polishing discs are designed for dry polishing of marble, granite, stone, and concrete surfaces. They feature a nylon backing and a diamond resin bond for effective polishing. Technical specifications Diameter: 100mm (4") Thickness: 3mm Working Thickness: 1.5mm Available Grit: #200 Usage These flexible dry polishing pads are ideal for various polishing forms, providing a convenient and less polluting option for achieving a high-quality finish.