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 2,AUTOMATIC OPERATION: The clip blade has a built in spring, which can automatically raise the clip blade, no need to manually pull open and then put the knife in to fix 3,HIGH EFFICIENCY: 2 grindstones can be used at the same time, which is more convenient to sharpen knives, saving time and effort 4,NON SLIP: The base has a silicone gasket to prevent scratching the table top and the sharpener from moving when sharpening 5,PROFESSIONAL AND FAST: Professional knife sharpening system, possess simple operation, fast and convenient sharpening Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.