1,Our factory passed Walmart,Watson,Boots,blade 2,Our product passed LFGB test ceramic knives set 3, ... have ceramic Specificationsceramic knives set 4-PCS Ceramic knife set blade Size:1PC 6.5" 1 PC 6"1 PC 5 ... reaction with food ,no metalic taste and smell.Material: 1.Blade made from advanced nano-grade zirconia,high-tech product;2 ...