Flags International offers Military Key Chains for the 5 branches of the Military and POW/MIA. Support friends and family with these great gift ideas. These clear resin key rings are approximately 2-1/2″ square and have a metal key clip. All Key Chains are limited stock. The flag image appears on both sides of the resin holder. This Key Chain of U.S POW / MIA key chain has a metal key clip.