Describe: Chef Twin Cermax has a 3-layer blade with a central core made of special steel flour Micro Carbide, which enhances hardness up to 66 HRC. CRYODUR® cold fill technology: steel will be cold-rolled and forged at temperatures below -196 degrees Celsius to balance the structure of the steel and shape the knife. The blade will then be processed at high temperatures to create sharpness and durability for the blade. Japanese manual grinding technology makes the blade even sharper. The handle with convenient Micarta design is made of linen and synthetic resin for comfortable and safe use during use. Hygiene products by hand. Size Information: Weight: 0.5 kg Size: 37 x 7.5 x 4 cm Use & Storage: Use: Specialized for cutting, slicing meats, fish and vegetables. Preservation: Can be cleaned by dishwasher. Keep in dry places. Brand Information: Brand: ZWILLING Material: Special Micro Carbide steel powder. Products are not warranted.