... ; 2.Health,Hygiene,hard and sharp; 3.No rusted and discoloration; 4. white Ceramic knife 5,LFGB,EU,SGSCeramic Knife – High Density ZirconiaItem No.: JH3A1 ... kinds of acid & alkaline organic substances; keep food original color and flavor, enjoy the gourmet flavor! High quality zirconia ceramic chef knife with sheath