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," which enhances its protective properties and makes the knife less prone to corrosion. As a result of this process, the steel has a black color. 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 lifespan and helps maintain 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.).