How many blue breaks are found on the collar device of a Chief Warrant Officer Four?

The collar device of a Chief Warrant Officer Four (CW4) in the Navy features three blue breaks, which are distinctive elements of insignia to denote rank. The blue breaks are horizontal lines that are an integral part of the collar device structure. Each break signifies a level of rank, and for CW4, three blue breaks represent their advancement within the warrant officer ranks. This design element helps to visually communicate the officer's rank and experience, making it recognizable to others in the naval service.