4 x Grindstone. Item Type: Kitchen Knife Sharpener System. NON SLIP: The base has a silicone gasket to prevent scratching the table top and the sharpener from moving when sharpening. Feature: 1. FAST TOOL CLAMPING: No need for wrench screws to fix, greatly improved user experience At present, all sharpeners on the market require a wrench screw to fix the tool.
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