1、Non-slip holder keeps the sharpening stone securely in place so you will never have to worry about the whetstone slipping off counter. 2、Suitable for almost all kinds of knives, precision tool, planer tool and chisels. 3、Necessary for both professional cooks and home users to sharpen cutting tools. 4、It can quickly sharpen dull or damaged knife with just a few pulls. It is perfect for finishing and polishing the edge. 5、The whetstone is made of natural corundum, It has excellent features of self-sharpening. Features: It is corrosion-resistant, heat-resistant. The edges and corners are clearly demarcated. The whetstone is made of natural corundum, It has excellent features of self-sharpening. It can quickly sharpen dull or damaged knife with just a few pulls. It is perfect for finishing and polishing the edge. Necessary for both professional cooks and home users to sharpen cutting tools. Suitable for almost all kinds of knives, precision tool, planer tool and chisels. Non-slip holder keeps the sharpening stone securely in place so you will never have to worry about the whetstone slipping off counter. Specification: Condition: 100% Brand New Item Type: Sharpening Stone Material: White Corundum Color: Green Size: Approx. 180x60x25mm / 7.1x2.4x1.0in Weight: Approx.627g/22.1oz Grit: 400 Package List: 1 x Sharpening Stone 2 x Non-slip Mat 1 x Bamboo Base 1 x Angle Guider Note: 1. Because there was a manual measuring ,the size may has 1-2inch difference. 2. The color may be slight different due to the condition or light or different monitor.