Specification Blade Material(Zirconia Oxide)Zirconia Oxide is second in hardness only to diamond, extremely hard,wear resistant,chemically inert and has a hardness of 8.2mohs(VS.steel at 5-6mohs and diamond at 10mohs).Unlike steel knives,the Ceramic blade has a smoother surface,enabling it to slice through any type of food effortlessly. This smooth surface also makes ceramic knives more hygienic.The ceramic blades will not transfer metal ions to food, nor corrode from acids or oils in fruits and vegetables.They are also corrosion free and neutral to taste making them an ideal solution in food preparation.What's more, they will never ever rust and stay sharp for considerably longer than other knives.Hanlde Material(ABS)Have advantage of Good Texture,Never change color and feel comfortable when hold it.Demension(mm)Blade Length:143 Total Length:265 Net weight:101gKeep SharpMaintain many years due to Ziconia Oxide's propertyMain Features1.Deathly sharp blade for peeling, chopping fruit,meat and vegetables easily.2.Attractive Chinese knives made entirely from ceramic; High hardness;Never rust and change colour; Resist from mould,alga contamination;Easy to clean.Cautions: Do not use knife on stone chopping block.Do not use to chop or pry as this may chip the tip of the knife.Blade is extremely sharp. Please prevent children from touching.Do not sharpen the blade with traditional sharpener.Ceramic knives should be hand wished with mild detergent and stored n a knife block or a knife sleeve.