Outdoor Edge RazorSafe System 3 inch Gutting Replacement Blades - The 3in gutting blade features a hooked tip to effortlessly cut beneath the hide without piercing internal organs, opening game like a zipper for fast and effective field dressing. This blade design works equally as well as a line/box cutter and even a rescue blade. Used blades can be safely stored and transported in the included blade box. This blade is compatible with all 3in RazorSafe model knives. SPECS Steel: Japanese 420J2 Rockwell-C hardness: 57