14 pcs Whetstone:10 x black Whetstone & 4 x silver Whetstone 10 different pieces of stone grain 80, 120, 200, 400, 500, 600, 800, 1000, 1500, 2000 GRAIN. The diamond stone is smooth, it uses a single crystal diamond, resistant to wear, long lasting. When polishing, choose 1000 1500 2000 grain if you make fine grinding, 600-800 grain if you make coarse grinding, 80-500 grain. size:16x2.4 Cm Material:Diamond colour:black+silver FED UP WITH DULL KNIVES? SAVE MONEY ON KNIVES AND STAY SAFE with everything you need to keep your knives razor sharp and restore dull and knives to their former glory. Not only a knife sharpener; the sharpening stones can be used on practically any straight non-ceramic blade tool. BECAUSE ONE CAN'T DO EVERYTHING. The 800#1500 whetstone is suited for repairing dull or knives, while the combination 2000 3000 grit whetsone is perfect for honing a final edge. A comprehensive knife sharpening guide and eBook shows you how to use each to its full potential. Package Contents: 14 x Whetstone