• Work as secondary strain-relief for double security.
• Multi-color body for clear identification of different protocols.
• Keep plug latch from catching onto other cords when   removing from densely populated patch panels.
• Recess area on the cap for labeling or marker writing.
• Colors (YY): Green (GN), Red (RD), Blue (BL), Ivory (IV),
  Orange (OR), Purple (PP), Gray (GY), Yellow (YL),
  Black (BK), White (WH).