1) Diameter: 80, 100 and 125mm 2) Grit is 50, 100, 200, 400, 800, 1500, 3000 and buff 3) For rough, fine dry grinding and buffing 4) Can be used for dry and wet polishing, edge polishing, surface polishing, floor finishing and restoration 5) Resin bond for long life Velcro backed polishing pad is for granite and marble polishing, it is ideal for spot polishing job and additional partial working. It is much more flexible than normal dry pad, which makes it ideal for concave and convex as well as flat surface. It is designed to achieve a high quality finish on all straight or contoured granite, marble, and other stone. Its unique design allows rapid and even removal rated with minimum effort.