1. Material: white corundum 2. Size: 18x6x3cm 3. High-grade whetstone water stone to ensure effective grinding effect 4. Double-sided sharpening design, equipped with a silicone non-slip base, Safe sharpening guaranteed 5. Widely used for knives, scissors, hand tools, woodworking tools, carving tools, etc. 6. Instructions for use: Soak the stone in water for 5-15 minutes, then place it on a stable on the platform. The method of sharpening in one or two steps depends on the degree of blunt tool Step 1: Coarse grinding, used to repair the edge of severe dam aging, is suitable for dull knives. Holding the knife at a 10-30 angle, use light pressure to grind the edge back and forth across the stone surface, and sharpen until the edge is sufficiently sharp. After sharpening the tool, coarse grinding is required after half a year. It also depends on the specific situation Step 2: Fine grinding, this is a necessary step to remove edge burrs. Using more gentle pressure, repeat step 1 and repair the edges until smooth and sharp. Generally speaking, use it once a week to keep the blades sharp Note: After sharpening the tools, please wipe with a damp cloth or rinse with water, then dry. Clean the stone surface with a soft brush, then put it in the air to dry