The Marks Mundial boning knife is made of high-carbon Japanese steel, ensuring greater durability and the highest edge retention under the most demanding conditions. It has a 6" wide, stiff blade. The molded, black ergonomic non-slip grip handle assures extreme comfort for long term use. . The blades and handles are matched for great balance, which minimizes fatigue. NSF approved, these knives are treated with sanitized antimicrobial protection, which protects the knife handles from bacterial growth.