Different sharpening eyes realize different thickness sharpening. sharpen your knife in the first eye, then in the second eye and finally in the third eye. in this way, you will achieve the sharpest shape by performing a perfect sharpening. more than 100 stocks are available to be sold at the campaign price. the listed price is valid until october 17, 2026. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.