The WK Tactical Dagger was designed by an active member of an US Tier 1 Military Unit to do what double edged blades are intended to do. This is a no frills tool, created for professionals who know how to use it. Knife Specifications Blade steel: 80CrV2 Black oxide no-glare finish. .205" blade stock and .959" blade depth, full tapered tang. Double edge. Sheath Lined Kydex® Spring steel, belt clip Comes with original Sheath. Excellent condition.