4" Wet Diamond Polishing Pad 1)polishing fast and durable 2)Mirron-like shining effect 3)Soft face Competitive price 4" Wet Diamond Polishing Pad resin bondAvailable grit:50#,150#,300#,500#,1000#,2000#,30000#,black or white BUFFMachinery:Hand Hold GrinderUsed for convex and concave shape polishingStrong, wear weel If you are interested in this product , please ask more question.