waterproof abrasive sheets of great quality and optimal yield for hand sanding. Waterproof abrasive sheets of great quality and optimal yield for hand sanding.Grain: silicon carbide.Bonding: resin over resin.Backing:closed Grit rand: P60,P80,P100,P120,P150,P180,P220,P240,P320,P360,P400,P600,P800,P1000,P1200,P1500,P2000Color: Black or Grey.Size: 230*280mm. Abrasive Sheet (seven Star Quality)