This package carries (a)-(b). (a) 1 Piece of V20 (20mm / 3/4) Diamond Router Bit / Hand Profiler (used with polisher / grinder) to do Full shape bullnose. For 20mm (3/4) Thick or High granite marble concrete travertine quartz. To do Full shape bullnose (5/8-11 Female Thread arbor). Grinder or polisher speed must be lower than 5000 RPM. (b) Hard Foam Backed Hand Pad With Interchangeable Electroplated Diamond on Flexible Cloth. 1 Ergonomic Hand-shaped Foam Backing Pad. 7 Pieces of Interchangable Working Layers. 1 Grit 60, Size 90mm x 55mm, Electroplated Diamond on Flexible Cloth. 1 Grit 100/120, Size 90mm x 55mm, Electroplated Diamond on Flexible Cloth. 1 Grit 200, Size 90mm x 55mm, Electroplated Diamond on Flexible Cloth. 1 Grit 400, Size 90mm x 55mm, Electroplated Diamond on Flexible Cloth. 1 Grit 800, Size 90mm x 55mm, Electroplated Diamond on Flexible Cloth. 1 Grit 1500, Size 90mm x 55mm, Electroplated Diamond on Flexible Cloth. 1 Grit 3000, Size 90mm x 55mm, Electroplated Diamond on Flexible Cloth. For Hand grinding and polishing with water on granite, marble, glass, composites, concrete, softstone, terrazzo, gemstone, ceramics and porcelain. The newest and most efficient hand polishing technology. This design allows the user to quickly switch grits and attach them to the provided foam backing pad without the need to carry a pile of bulky pads from job site to job site. Roxx brand hand polishing pads are ideally suited for polishing, grinding, restoring and cleaning areas that are too narrow or difficult to reach with powered polishing tools such as wet grinders and angle grinders. They can also be useful for small areas like polishing corners, contoured surfaces, smoothing the join line of two bullnose surfaces, and in various sculpting applications where a powered tool would be too aggressive or otherwise inappropriate. These pads can be used on a variety of surfaces and substances and are ideal for granite polishing, concrete polishing, marble polishing, terrazzo polishing, engineered stone polishing, travertine polishing, glass polishing and nearly any other kind of hard surface. Ideal for restoration, these diamond polishing tools can be used for floor polishing, counter top polishing, stone sculpture polishing, honing, seaming and repair of areas where machine polishing is impossible or impractical.