Revolution Series Santoku Knife: Polished black zirconium oxide ceramic blade with an ABS plastic ergonomic handle Edge retention is the most significant benefit of using ceramic blades, which stays razor-sharp 10 times longer than conventional steel blades Ideal for slicing fruits, vegetables and boneless meats Strength and density of advanced ceramic allows grinding to microscopic precision Ceramic is a pure, healthy alternative that will never rust or change from its natural state Resistant to acids, juices, oils and salts Lightweight knife becomes comfortable in the hand, reducing fatigue during repetitive cutting Blade measures 5 1/2 inches in length Hand wash only Avoid: Cutting hard or frozen foods or bones Dropping on hard surfaces Carving, prying, flexing or scraping Cutting on marble, glass, stone or tile Manufacturer's five year warranty. Kyocera offers complimentary resharpening (see package insert for details). " material="Zirconium oxide and ABS plastic" origin="Japan"