Diamond knife sharpener from Wusthof® suitable for both right-handed and left-handed users. It combines two sharpening stages depending on the condition of the knife's edge. The first stage (Coarse) with a diamond surface is ideal for worn knives, while the second stage (Fine) with a ceramic surface is intended for regular sharpening and for use after the first stage. Knives with serrated blades should only be sharpened in the second stage to remove any burrs. The sharpener was developed in Solingen, Germany by Wusthof® and is designed for use by inexperienced individuals. With a sharpening angle of approximately 30 degrees, it is suitable for almost all types of kitchen knives.