Kyocera Ceramics knives are made of zirconia. They have revolutionary characteristics in comparison to conventional steel knives. The ceramic knives are harder than any other cutting tools, except diamond, yet are lighter than steel and stay sharper for longer that most knives. The Ceramic blade has a smoother surface than steel, enabling it to slice through any type of food effortlessly. The smooth surface makes Kyocera ceramic knives more hygenic. They are also corrosion free and neutral to taste making them an ideal solution in food preparation.