HUIWILL CE101B Ceramic Knife Set-6pieces Blade Material: made from zirconium dioxide, the second hardest material in the world, next to diamond. Ceramic knives will not corrode in harsh environments, are non-magnetic, and do not conduct electricity at room temperature. resistant to strong acid and caustic substances, and their ability to retain a cutting edge longer than forged metal knives, ceramic knives are better suited for slicing boneless meat, vegetables, fruit and bread. unsuitable for chopping through bones, or frozen foods, or in other applications which require prying Good for keeping food fresh for not transfering smell easily