Product name: Professional Functions Knife Sharpening Stone Range of application Widely used in kitchen knives,garden tools and woodworking tools etc. Product features: 1. High-grade corundum ensure effective sharpening results. (2000 grit) 2. Equipped with silica gel non-slip base guarantee the safety sharpening. Sharpening instruction: 1. Soak the stone in the water for 5 minutes, and then put it on a steady platform. Sharpening the knives with one or two steps is decided by the degree of blunt tool. Generally we advise you to use it once a week or daily use, and always keep your blade sharp. 2. Please wipe it with wet cloth or rinse it with water after sharpening the tool, and then dry it. Clean the stone surface with a soft brush and put it in the air to make it dry. Caution: 1. Please use the whole surface of stone to keep the consistency when sharpening knives. 2. Protect the stone well and avoid it falling from the height. 3. Using with sharpening oil would be much better. 4. Please put the knife sharpener and knife beyond the reach of children to avoid any accidents.