• Best set of whetstone! Good choose for kitchen knife, precision tool, sushi knife and so on
• Fine Grit (#5000) is used for sharpening, and Fine Grit (#12000) is good for fine honing
• Stones are colored with matching ventilated plastic boxes which also serve as stone holders
• Working surface: 8-1/4 x 2-3/4 x 1/2 in. (210 × 70 × 15mm)