Kyocera Advanced Ceramic Revolution Series 2-Piece Cutlery Gift Set, Includes 5.5-inch Santoku and 4.5-inch Utility Knife, White Blade with Black Handle Unrelenting sharpness: razor-sharp blade stays sharper longer-superior edge retention Unparalleled purity: will never brown foods; No metallic ions to transfer - won't alter the taste, smell or appearance of food Ultra lightweight: Perfectly balanced and light, reduces fatigue during repetitive cutting tasks Material Composition: Blade - Zirconium Oxide-Handles: ABS Plastic Lifetime Warranty: Buying a Kyocera knife is buying for life. If your knife is chipped or damaged, Kyocera Industrial Ceramics will repair or replace