... #---2000#. 2,Grinding metal,wood,steel,rust cleaning. 3,Size:230mmX280mm(9"X11"). Waterproof sand paper1)Name:Waterproof sand paper/waterproof abrasive ... sand paper. 2)Material:Silicon carbide with kraft paper. 3)Size:9"X11"(same as 230mmX280mm). 4)Grit:80#----2000#. 5)Usage ...