Resembles Metal Imperial Officer Boxes with the Folded Metal Corners.

Boxes fit into each other

2x 2mm holes to mount a Belt Clip.

2" x 3" x 1"

meets 501st requirements

"Two boxes shall be present on either side of buckle. Dimensions are approximately 2" (50.8mm) by 3" (76.2mm) by 1" (24.5mm)."