knifeFS-0035-inch blade ceramic slice knives with soft handle Materials: stabilized zirconium with yttrium oxide (TZP) Material owns propertied of exceptional hardness closed to diamond High hardness also insures a long lasting cutting, much longer than for any other traditional steel knife No smell, or oxidation on the blades, will transfer when in contact with foods Non-porous surface will not let bacteria infiltrate the blade Cleaning is easier, smooth surface that food does not stick to Use and care advises: Use a wooden or polypropylene cutting board as cutting support Do not use on earthenware, glass or porcelain surface Avoid any shock on hard surface Do not use for other function than cutting (screwdriver, bottle-opener, tin-opener and lever) Do not cut hard, frozen or boned food Re-sharpen if necessary with ceramic sharpening steel Wash by hand or in a dishwasher Store in a protected compartment (block or original box)