【high-quality steel】 First you need to know this is a hand forged knife from high carbon steel and high manganese steel. Our boning knives are not made of stainless steel, so after each use, you may need keep it clean and dry to resist rust. But high carbon steel has a better ability to maintain sharp edges than stainless steel. The hardness of our knives are as high as 60-62HRC.It will assist you with every perfect cut. Reasonable maintenance after every use, it will last a long lifetime.