... 2 Natural delicious,lossless 3sharpness can keep long Specifications1. zirconia ceramic knife made of Zirconium; 2.Health,Hygiene,hard and sharp ... knife204mm45mm2.2mm130mm334mm1,Refining made by Zirconium ceramics materials which called “ceramic steel”, have the properties as sharp-edged, wearable, rust ... it is made of compactd material so that it is with no holes best price zirconia ceramic knife set