... No rusted and discoloration; 4. white Ceramic knife 5,LFGB,EU,SGSCeramic Knife – High Density ZirconiaItem No.: JH3A1- ... JH7A1-P05Model: 3", 4", 5", 6", 7" ceramic knife A seriesBlade Material: zirconium dioxide (ZrO2; also known ... as zirconia)Blade Colour: white,Handle Material: ABS+TPR handleSize Available: 3”, 4”, 4.5”, 5”, ... gourmet flavor! High quality zirconia ceramic chef knife with sheath