ComeFloor Diamond Premium Resin Matte Dry Polishing Pads is made from resin with high diamond concentration inside,never use Sic as additive,with aggressive and tenaciously,better heat transmissibility performance,can be used only by dry.They are designed for different applications including marble,granite,concrete,terrazzo,porcelain and engineered stone Size Information Diameter(Size):4Inch(100mm) Thickness:3mm Grit:50#,100#,200#,400#,800#,1500#,3000# Dry/Wet:Dry Features and Benefits Long lifespan/Never mark the stone and burns the stone/Bright clear light and never fade/High gloss finishes in very short time/Better heat transmissibility performance Applied machine Angle grinder or other hand machine Package Contents 7 pieces a set.Carton box for each set How to use Always remember to wear protection for your eyes,nose,mouth and hands.Never use high speed grinder and exceed rated RPM.(Maximum speed RPM 4000,Optimal RPM 2200. If the stone surface is seriously damaged,you can start with grit 50 till 3000,verify the entire polished stone surface has same level of smoothness before moving to next grit.If not,continue polishing with same grit.Don’t skip any grit in between.Most of the stone will show shine starting grit 800. It is recommended to clean the work surface before using it.Otherwise it will affect the grinding effect. About ComeFloor ComeFloor has 10 years’ history.Our main products are various of specification diamond saw blades,flexible polishing pads,diamond grinding wheels,and abrasive brushes,etc.Our tools are popular among stonemasons,marble and granite fitters,concrete cutters,bricklayers etc.At present,our products are mainly exported to USA, Canada,Germany, Russia,Brazil,Australian,etc.We aim at provide best quality,suitable price and excellent service to our customer.