Summary

The PCC160 microphone is used a lot as a stage/floor microphone and so may be subjected to accidental stepping on.. While the mic itself is rigid enough to withstand such abuse, the connector is very delicate and may be damaged in case of direct hit. This is my take for a shield to protect the connector.
The shield is attached to the connector end of the microphone and should be gaffed to the floor together with the microphone.