The Kyocera Kyotop Damascus collection features a beautiful Damascus-design pattern made of Zirconia-206 advanced ceramic. This special formulated ceramic keeps the knife blade ultra-sharp and offers a superior edge retention. Close in hardness to a diamond, these advanced ceramic knives undergo a special process called "HIP" (Hot Isostatic Press); this process fires the blade a second time at a higher temperature & pressure giving the knife blade greater density which increases the wear-resistance. Kyotop knife blades are razor-sharp, staying sharp up to 10 times longer than high-carbon steel. Each blade is hand finished. Ceramic blades will never brown food, alter the taste or rust. This high performing blade is complimented with a triple-riveted Pakka wood handle. Made in Japan, lifetime warranty.