What is the proper measurement for collar devices?

The proper measurement for collar devices is 1 and 7/8 inches from the collar's center. This guideline ensures that the devices are uniformly positioned across all uniforms, contributing to a neat and professional appearance. The specific distance helps maintain consistency, which is vital in military dress and insignia placement. By aligning the devices at this precise measurement, personnel can uphold standards that reflect discipline and attention to detail, both of which are foundational values in NJROTC and military culture.

Other options don't meet the uniform standards established for collar device placement, contributing to variations that can detract from the uniformity expected in military appearances.