This diamond polishing disc is made of premium metal with one side diamond coated, 95%. Features high hardness, wear resistance, and impact resistance, electroplating diamond particles provides long service life This diamond grinding disc is designed for cutting or sanding and glass. and high quality. Extremely flat and parallel design makes the disc fully Seamless fit, the embedded abrasive allows fast cutting while achieve the most exactly faceting requirements. grinding wheel Grit: 600 800 1500 3000 Material: diamond colour: silvery Package Contents: 4 x Diamond Polishing Disc Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.