Surface Treatment:mercerized Ceramic knife black blade: 1.unique blade made of zirconium oxide 2.never rust 3.Sharp edge,environment-friendly 4.High hardness Characteristics: 1. Knives have a unique blade made of zirconium oxide, an advanced material that its hardness just less than the diamond. 2 This special blade will hold its edge much longer than steel3. Will never rust and won’t alter the look or taste of food. 4. The ceramic knife can prevent itself from corrosive of acids. 5. It is easy to clean and can keep the primitive colors and original taste of food. 6. The knife is nonmagnetic completely. It made of compacted material so that it is with no holes. 7. it has ergonomic plastic handle , ergonomically shaped handle (ABS) in black which keep the ceramic knife lightweight and colorful, added TPR on handle make you feel much more comfortable while holding Advantages: 1. Sharp edge and never need to sharp again. 2. High hardness; never be worn and torn; 3. Never rust and change color; healthy and environment-friendly; 4. Resist contamination; easy to clean; nonmagnetic; fully compact materials. 5. Food can retain its original color and flavor. 6. The ceramic table knife fully embodies the green and environment-friendly concept of new materials in new century. 7. Pure white and sweet colour , like jade ,make noble sense Use and care: 1 It is ideal for straight cuts of fruits, vegetables and boneless meats.2 It always use with a plastic or wood cutting board. Avoid cutting on marble, stone, glass, or tile.3 Use your conventional steel knives for carving, prying, boning, and cutting frozen food and cheese. These applications involve twisting and flexing, which require a more flexible material than ceramic4 Hand wash with water and liquid dish soap; do not wash in the dishwasher.5 For discolorations not removed by normal washing, wash the blade only with a mild bleach solutionAvoid:1 Dropping on hard surfaces2 Hitting against china or flatware3 Putting the blade in open flame (ceramic conducts heat)4 Scraping hard surfaces5 Turning the blade on its side to smash garlic or other items6 Applying force to the side of the blade