Specialty Diamond E4SET Professional grade starter pad set for concrete, granite, and marble polishing (E4PADSET). Specialty Diamond E4SET 4″ Diamond polishing pad set includes: 50, 100, 200, 400, 800, 1500, 3000 grit and also includes hook & loop backing pad. It has outstanding finish on concrete countertop flat surface, contoured surface, edge polishing and concreted floor polishing. Also works well on marble flat surface, edges, and floor polishing and works equally well on softer stone, travertine terrazzo, glass polishing, granite edge polishing and quartz edge.