CobraTec's Large FS-3 puts a 3.5" D2 tanto blade behind a true dual action OTF mechanism: push the thumb slide forward to fire the blade out, pull it back to retract. D2 tool steel holds an edge through hard cutting, and the tanto grind adds tip strength for piercing work.The aluminum handle carries a glass breaker at the butt and a pocket clip that swaps sides for left or right handed draw. Overall length runs 9" with the blade out, and a nylon sheath is included. CobraTec backs the knife with a lifetime warranty.