Ⅰ. Convenient: Small size, light weight, easy to carry. Ⅱ. Application: Sharpening family kitchen tools, wood chisels, jade, joints or carving knives. Ⅲ. Double-sided grinding: #400 side for coarse grain sharpening and #1000 side for fine grain sharpening. Ⅳ. Effective material: This Whetstone uses diamond abrasive material, which is more effective than ordinary sharpening stone and has less risk of damaging the edges. Ⅴ. 24-hour customer service. Ⅵ. Diamond sharpening stone, knife sharpener 400/1000, 150*63*1mm honeycomb outdoor kitchen sharpening tool, 5/16 inch galvanized steel base. Ⅶ. Diamonds are the hardest sharpening tool. Ⅷ. This diamond stone cuts aggressively and leaves a beautiful finish. Ⅸ. Cuts 8 times faster than other abrasives. Ⅹ. This diamond stone will cut aggressively and leave a fine finish, can be used to sharpen anything with an edge, but it will not be burred or flattened when used. Ⅺ. Can be used dry, but using with lubricant will cut faster and last longer. Ⅻ. The diamond sharpening stone is suitable for sharpening kitchen knives, cutting tools, jade, engraved knives, glass tiles for beveling, additional grinding - industrial and mining enterprises hard cutting tools, etc. XIII. easy to carry and work, and it is an economical tool. XIV. Product Details: - Package: 1 x Double-sided Diamond Sharpening Stone - Material: Diamond - Grit: #1000 & #400 - Size: 150 x 63 mm / 5.98 '' x 2.48 inch XV. Warm Tips: 1. Do not use the sharpener to sharpen serrated knives. 2. To avoid damaging the knife, sharpen the knife slightly and do not sharpen back and forth. 3. Do not put the sharpener in the dishwasher or immerse it in water.