As follows, you can find the microscope picture enlarged in 50 times for ceramic knife sharpener. The grains are spread even and small. The effect for sharpening knives is perfect and will not hurt the blade of the knife:

 

As following,you can find the microscope picture for ceramic sharpener enlarged in 200 times. It’s more clear

 

The surface of the ceramic sharpen which we produced is very smooth. And many people think that’s impossible for sharpening the knives. In fact,the fine grains under the surface are arranged in series and that will promote the effect for sharpening knives and lower the damage on the blade. You can find that’s the display of good material and producing technique.