Worldwide, we believe that there are in excess of 1,200,000 walk through metal detectors (WTMD) installed in various high security locations and that detection devices, such as the MagShoe?, are a necessary part of any security measures in place in those installations as well as other areas where there are no walk through metal detectors. The MagShoe? acts as a complementary device to any and all walk through metal detectors, insuring that all who pass through have no metallic weapons in the area that the metal detectors are inherently weak.