... 3.never mark the stone surface 4.for portable grinding M/C Features:1.Flexible polishing pads, also integrated grains with resin ... to change the natural color5.White buff is used for polishing light color stone finally, and black buff for dark ... below:-Size(inch)3, 4, 5, 6TypeDry Polishing Pad, Wet Polishing PadGrit50,100,200,400,800,1500,3000,buff Dry diamond polishing pad for maintaining, repairing ...