The Old Edge RazorSafe Gutting Blades are precision-crafted replacement blades designed to open game like a zipper without piercing vital organs. Made from Japanese 420J2 stainless steel and measuring 3.5 inches each blade is heat-treated and hand-finished to a surgically-sharp cutting edge.Old Edge RazorSafe Replacement Guthook Blades - 4 PackBlade Material: Japanese 420J2 stainless steelSize: 3.5 inches with plain edgeFinish: Satin stainless steel finishPackaging: Blister pack with orange plastic caseHeat-treated and hand-finished for surgical sharpnessPerfect for hunters and outdoor enthusiasts who need reliable precise gutting blades that maintain their edge and provide clean efficient game processing without organ damage.