1.Silicon carbide 2.C/D paper backing 3.Waterproof abrsive paper sheet 4.Marble,stone,metal,S/S polishing 5.OEM accepted Grain BackingBondGritSiKraft paper(D wt)R/R60801001201501802202402803203604005006008001000120015002000PackingPer bag100Per carton1000We usually use C or D paper backing and with grits from 60-2000, it can be usd in both wet and dry polishing in automobile, stone, marble, metal ...