Polishing disc,grinding disc,abrasive disc. 4,6,8,10 inch available. Polishing disc,grinding disc,abrasive disc.1.DescriptionGritSizeCharacteristicsDiamond Grinding Disc50#,200#,400#4,6,8,10 inchHigh efficiency,durable lifeResin Grinding Disc500#,800#,1500#,3000#4,6,8,10 inchHigh sharpness,high glossPolishing DiscLUX8inchQuick lustering, high clearness