Keep your kitchen knives in perfect working order with this wmf spitzenklasse sharpening steel. With a knife sharpener or sharpening steel, a quality knife can be sharpened easily and effectively, for even the best knife will lose its edge over time. With the right technology and the right sharpening steel made of ceramic or chrome-vanadium steel, the knife should be honed before or after each use with a sharpening steel. The wmf knife sharpeners are characterized by their long service life and ease of use. Made in germany.