Extrema Ratio Ultramarine NEDU diving knife

The Extrema Ratio Ultra Marine NEDU is a deluxe diving knife, developed in collaboration with military and civil diving teams. This specific model was developed with the people from the Naval Experimental Diving Unit from the United States. They specifically wanted a knife as a tool, not a weapon. That's why this NEDU version doesn't have a sharp tip. It is ideally suited for use underwater and in difficult and challenging conditions.