The SOG Trident uses the SOG Assisted Technology (S.A.T.) means of delivering a knife blade to the open position. Now using patent-pending Arc-Actuator, the Trident locks stronger and releases easier. There is also a built-in safety to lock the blade closed. The Trident also has a patented Groove in the handle, which allows the operator to cut paracord, fishing line, etc. without having to open the blade. The blade measures 3 3/4 inches with an overall of 8 1/2 inches; it weighs 4 1/2 ounces.