The ultimate double-blade knife for big game with Outdoor Edge's patented replacement razor-blade knife on one side, plus gutting blade on the other to open game like a zipper. This is the sharpest, strongest, replacement razor-knife available with blades that change safely and easily at the push of a button. The black-oxide coated blade holder supports the razor-blade for the strength of a standard knife and sharpness of a surgeon’s scalpel. Our signature gutting blade cuts underneath the skin without cutting hair, or piercing internal organs that can spoil fresh game meat.