... proof ceramic knife, Content of knives: ceramic bread knife, ceramic paring knife, ceramic chef's knife, ceramic fruit knife, ceramic utility knife, ceramic santoku knife, ceramic slicing knife, ceramic peeler ... healthy and environment-friendly; key words,ceramic knife, kitchen knife,japanese damascus knife,ceramic knife set,paring knife,ceramic folding knife, Property:Composition Wt% ZrO2+Y2O3%≥99 ...