Diamond and Ceramic Combo Knife Sharpener CS17

Diamond and Ceramic Combo Knife Sharpener Features: Makes a razor-sharp edge on knives with only a few strokes High-strength engineering plastic Pop up transparent head for easy cleaning Rust and corrosion resistant Hardness of ceramic function part: HRC>72 Hardness of diamond function part: HRC>78 Wear-resistance and long life-time Non-slip groove on its side and anti-slip pad in the bottom Sharpens any non-serrated knife, except for some special knife like ceramic knife it is not needed to use the diamond sharpening stone regularly, only the ceramic rolling wheel sharpening stone is needed regularly for sharpening purpose. For the blade becoming extremely blunt, sharpening involves two stages: start with the diamond sharpening stone, then go with ceramic rolling wheel sharpening stone.