The knife is made of 65G steel (carbon steel) with a hardness of 59-61 HRC. The blade has undergone a chemical treatment called "bluing," enhancing its protective properties and making it less prone to corrosion. As a result, the steel has a black finish. The handle is crafted from walnut wood, treated with stabilizing substances and linseed oil to highlight its unique grain. Vacuum treatment of the wood extends its durability and preserves its appearance. Knife dimensions: Total length: 25 cm Blade length: 12.5 cm Spine thickness: 3.5 mm The knife comes with a leather sheath. CARE RECOMMENDATIONS: After use, wash the knife and dry it thoroughly. Avoid cutting acidic foods (lemon, tomato, pineapple, etc.).