Kyocera Advanced Ceramic Revolution Series 5-1/2-inch Santoku Knife and Adjustable Slicer Set, Black 2-piece set includes 5-1/2-inch Santoku knife and mandoline slicer in black Ceramic blades ground to microscopic precision by diamond wheels for rock-like edge with excellent sharpness retention Blades are totally impervious to acids, juices, oils, salts or other elements; will never rust Mandoline features 4 slicing thicknesses, protective hand guard and corner notches to secure it on bowls Hand wash only for knife; mandoline is dishwasher safe