The OSS in WWII issued lapel knives to agents operating behind the lines as part of their Escape & Evasion kit. BJ took this design and made it with modern materials and innovations not available in WWII. The non-metallic blade is glass-filled nylon that has a triangular cross section with a fuller on one side. A recessed grooved thumb area allows seating of the thumb for thrusting. This little gem could be real handy in an emergency. Certainly a collectors item as well as a potential survival tool in hostile zones. The unique plastic sheaths are pre-drilled with 14 holes for sewing in the lapel or other strategic and hidden clothing areas. Blade measures a lethal 2.5” with an overall length of 3.5”. These are the last known quantity of this unusual survival knife. Comes with two sheaths for multiple venues. Restricted Article. Offer Void Where Prohibited by Law. BE SURE BEFORE YOU ORDER! DO NOT CARRY THIS ON AN AIRPLANE! Metal detectors will not pick it up, so if it is found, you may be Arrested, Charged and Prosecuted by the Federal Authorities.