Two Sided Whetstone/Sharpening Stone,the best choice for protecting knife when sharpening . Product features:1. High-grade corundum ensure effective sharpening results2. double-sided sharpening design(2000 grit coarse grinding and 5000 grit fine grinding).3. Equipped with silica gel non-slip base guarantee the safety sharpening. Using Instruction:1. Soak the stone in the water for 5 minutes, and ...