Detailed Product Description 1-abrasives: A/O,S/C,Flint and stearated coating surface.2-size: 2"(50mm), 3"(75mm),4"(100mm),5"(125mm),6"(150mm),7"(180mm).4-grit: 40,60,80,120,150,180,220,240,320,400,600,800,1000,1200,1500.5-Hole type: No hole,1 hole,5 holes,6 holes, 7 holes,8 holes,16 holes or as customers request.6-backing: C,D,E,F weight paper,braft or latex paper,and waterproof is available and ...