ITEM NAME:6" Inch Grit 600# Diamond Coated Flat Lap Wheel Lapidary Grinding Polishing Disc 6" Inch Grit 600 Diamond Coated Flat Lap Wheel Lapidary Grinding Polishing Disc SPECIFICATIONS.(2) High diamond coating density, high hardness, sharp grinding, wear resistance, can be used repeatedly. Material: Diamond. Size: approx. 2) Color may vary slightly due to the color setting of each individual monitor.