[DETAIL] A knife sharpener with high cost performance 1. Very simple structure, easier to install and use. 2. The handle is on the above of the knife blade. It's super safe, will not hurts your hands! 3. The stones can use WATER for sharpening, doesn't need expensive sharpening/honing oils 4. This global whetstone sharpener can sharp ANY BLADE out there, Is a good helper for your abrasive tools The package we paired with may not be the most suitable for you You can choose to purchase the stones you need according to your needs If you often sharpen knives, or if your job is sharpening knives, it is recommended that you choose a large package, which is very cost-effective! The sizes as fellow picture : The fixture : Can be clamped to a maximum of 4.5cm [ If your workbench thickness is greater than this specification, you can choose our other style! ] Installation steps [ You can also watch the video on how to install ] how to clamp the knife [ You can follow these steps ] Tips: 1. Please invade the stones into the water for a while until there is no blisters before using. 2. Then you can take the stone out, put a few drops of water on the stone to prevent it from drying out during sharpening, can effectively prevent the stones from being wore out easily. 3. By the way, you also can use a few drops of dish soap in the water for added lubricity. In this way, the sharpening stone will not produce dust during use, and you can get your knife sharp again. 4. After use, please clean and dry the whetstones, and put them in normal temperature and dry environment, avoid high temperature and damp. [ATTRIBUTES] - Hign-concerned Chemical: None - Material: Other - Certification: CE / EU,CIQ,EEC,LFGB,SGS - Hign-concerned Chemical: None - Material: Other - Certification: CE / EU,CIQ,EEC,LFGB,SGS - Feature: Eco-Friendly,Stocked - Metal Type: Aluminum alloy - Brand Name: RSCHEF - Type: Sharpeners - Origin: Mainland China