The Zulu Assegai (as-uh-gahy) Spear heads are 13.3 inches long and made from SK-5 medium carbon steel, heat treated and drawn to a tough spring temper, and designed to flex or bend under impact forces rather than breaking or shattering. The spear-head comes with a protective Secure-Ex sheath made of hard tactical impact plastic with an added nylon retaining strap.