The unique body of the survival buckle is composed of highly durable glass-filled nylon, while the face & frame are made up of zinc with a Matte Black finish. The buckle sports an integrated folding knife with both a frame lock when the blade is out, and a safety to keep the knife in place when not being used. Other features of the belt include a bottle opener, led flashlight, and a ferrocerium fire starter rod and just like our other belts, it is a ratchet belt. Strap: 48" length 1.50" width