General description MinoSharp Shinkansen Sharpener in Grey & Black is designed for effortless knife maintenance. This innovative sharpener features ceramic wheels that sharpen blades at the correct angle, making it easy for anyone to achieve a professional edge without prior experience. Regular use of this sharpener will help maintain your knives for the long term. Technical specifications Type: Ceramic water wheel sharpener Color: Grey & Black Suitable for: Global Knives only Usage Fill the reservoir with water. Run your knife backwards and forwards a few times to sharpen.