CobraTec King Cobra D/A OTF Automatic Knife Satin Dagger Serrated Switchblade. The King Cobra is engineered and designed for everyday carry and offers a very smooth deployment and retraction. The Anodized handle is made from 6061 T6 Aviation Aluminum and comes with a Carbon Fiber inlay. Praised for its high wear resistance, D2 steel is a very durable and high-end knife steel that holds an edge very well. We offer 6 custom blade designs for this OTF. The King Cobra OTF comes with a pocket clip, a glass breaker for emergencies and includes a nylon sheath. All CobraTec Knives are backed by our LIFETIME WARRANTY. 5 ounces Dual Action OTF 4 inch D2 Steel Blade 5 inch Aviation Aluminum Handle w/ Carbon Fiber Inlay 9.25 inches in total length with Glass Breaker