* Blade length: 3 inch. * The Hi-Tech ceramic knives are made from the technical ceramic material, a substance that is second in hardness only to diamonds. They have obvious advantages in sharpness, long working life, rustproof and neatness. They will never alter the taste, smell or appearance of food and can be used to cut meat, fish, fruits and vegetables. So they are knives of high standard. * Advantages: * The material, being used in spaceflight, which formed in extreme temperature is close to diamond in hardness. So the edge is ultra-sharp and never dull. * The unrelenting density of ceramic is impervious to foods. As a result, it will be easy to clean and breed less bacteria. * It's not only corrosion and rustproof but also totally impervious to acid, oils and other elements. So it helps to keep the freshness of food.