It has two sides with different degrees of roughness for sharpening and smoothing. Measured according to the japanese jis scale japanese industrial standard , one side has a grain of 3000, the other of 8000. This ensures absolute sharpness and a mirror-polished edge. Thanks to this zwilling knife sharpener you are sure to enjoy using your knives for a long time.Height: 4cmweight: 0.871Kgwidth: 8.5Cmfor a professional, scalpel-like sharpness and reflective blade.Two different sides grain 3000 for fine honingtwo different sides grain 8000 for polishing, final honing Brand: Zwilling
