Brand TJC Model TJC-023 Quantity 1 piece(s) per pack Color Black + white + grey Material Zirconia ceramic Specification Made of high quality zirconia high hardness up to HRA90; Abrasion resistance is 60 times higher than metal knives; Never rusts and will not taint food with metallic taste; Suitable for non-hard food such as froze meat vegetables fruits fish and sea food etc.; Environmental friendly lead-free toxic-free acid resistant and alkaline-resistant Other Features 4" blade length: 105mm blade width: 22mm blade thickness: 1.7~1.8mm full length: 210mm; 5" blade length: 130mm blade width: 27mm blade thickness: 1.9~2.0mm full length: 240mm; 6" blade length: 150mm blade width: 35mm blade thickness: 1.9~2.1mm full length: 270mm Packing List 1 x 4'' Knife 1 x 5'' Knife 1 x 6'' Knife