Specification: Diameter 4 inch/ 98mm ,workable thickness=11mm Quantity: 3 pcs 98mm Feature: The diamond floor polishing pads wet use are great for white stone floor polishing. 11mm thick for very long life for large surfaces such as floor. Supply a better performance in grinding stone with polishing effect to get high gloss Strong grinding force, good durability. Glazing fast, good brightness and not fade. grit: 50#,100#,200#,400#,800#,1500#,3000#