This buckle,combined with a belt material (I used woven paracord), will produce a nice looking belt with two awesome properties: (1) Guaranteed not to set off metal detectors (2) Can be used in an emergency to provide almost 50 feet of high-strength para-cord! The buckle features a single-print, two-piece design. The buckle works like any typical one, but prints the part already assembled. The design also features a space for personalization (initials, etc). The version depicted was personalized for my father-- the files provide are the 'vanilla' part. STEP file is provided for those who would like to personalize. Makes a great father's day present! Enjoy! (1) Print out. The only support needed is included in the part itself for easy printing (2) Remove support piece from underside of tongue. (2) Gently rotate tongue to allow it to swivel (3) connect a belt-- I used woven para-cord for that aweseome survival touch (4) Wear proudly without fear of tripping a metal detector, and with the knowledge that you are also carrying survival equipment in case of emergency!