(sorry... I can't figure out how to change the orientation)
Ikelite SLR Flat Port for Nikon 105mm Macro Lens
Part number 5055.46
Used and in good condition
Comes with port o-ring and neoprene cover
It is the same item as in this listing: https://www.bhphotov..._Flat_Port.html
Asking $50 plus actual shipping costs from Singapore.
PM if interested. Thank you.