... discoloration; 4. white Ceramic knife 5,LFGB,EU,SGSCeramic Knife – High Density ZirconiaItem No.: JH3A1-P05,JH4A1-P05,JH5A1-P05,JH6A1 ... : zirconium dioxide (ZrO2; also known as zirconia)Blade Colour: white,Handle Material: ABS+TPR handleSize Available: 3”, 4”, 4.5”, 5 ... ; keep food original color and flavor, enjoy the gourmet flavor! High quality ceramic kitchen knife