SpecificationsDiamond Polishing Disc:Good polishing result,fast glazing and good defintion Description:Grinding ... Discs for rough grinding, 50#, 200#, 400# Resin-bonded Disc: fine and finish grinding/polishing. 500#, 800#, 1500#, 3000# Color: black, ... ratioResin disc500#,800#,1500#,3000#Shape, good durability,nice polishing effectionPolishing disc(Lux)LUX(black, white, gray, brown)smooth polish, ...