This is a brand new Rode RM2 Ring-Mount Stand Adapter.
Condition: Brand New.
Product Details: The RM2 is a low profile professional stand mount for most Rode large condenser microphones. It screws onto the bottom of the microphone providing an easy and convenient attachment system for your large diaphragm condenser microphones. Includes 3/8-5/8" adapter.
The RM2 is compatible with the following microphones: