... Super hardness 3,Suitable for dishwasher 4,Our factory is BSCI certified Specifications1.made of Zirconium; 2.Health,Hygiene,hard and sharp ... ; 3.No rusted and discoloration; 4. white Ceramic knife 5,LFGB,EU,SGSCeramic Knife – High Density ZirconiaItem ... P05,JH7A1-P05Model: 3", 4", 5", 6", 7" ceramic knife A seriesBlade Material: zirconium dioxide (ZrO2; also known as ...