1、The observe side is for holding sharpening stone while the reverse side is to skid resistantly touching the table. 2、The whetstone base is suitable for holding all kinds of grindstone ranging from 90-250mm. 3、The whetstone base is suitable for installed on sink ranging from 305-450mm. 4、The whetstone base is multifunctional, high strength, fine hardness and practical in use. Nice assistant tool in the kitchen. 5、The whetstone base is made of fine quality stainless steel, not easy to rust, practical and convenient, suitable for sharpening various kinds of cutters in home kitchen or canteen. 6、This product is suitable for sharpening of household kitchen cutters, sharpening of woodworking cutting tools and so on. This product is a grindstone bracket, anti-slip design, more efficient and safer in use, suitable for grindstones between 90mm to 250mm in length. Features: The observe side is for holding sharpening stone while the reverse side is to skid resistantly touching the table. The whetstone base is suitable for holding all kinds of grindstone ranging from 90-250mm. The whetstone base is suitable for installed on sink ranging from 305-450mm. The whetstone base is multifunctional, high strength, fine hardness and practical in use. Nice assistant tool in the kitchen. The whetstone base is made of fine quality stainless steel, not easy to rust, practical and convenient, suitable for sharpening various kinds of cutters in home kitchen or canteen. This product is suitable for sharpening of household kitchen cutters, sharpening of woodworking cutting tools and so on. Specifications: Material: stainless steel Suitable grindstone size: 90-250mm Suitable sink size: 305-450mm Item size: 360 * 74 * 25mm / 14.2 * 2.9 * 1.0in Item weight: 600g / 1.3lb Package size: 370 * 80 * 30mm / 14.6 * 3.1 * 1.2in Package weight: 650g / 1.4lb Packing List: 1 * Grindstone Holder 1 * Grindstone Holder