Question about Canon Angle finder C (with adapter ED-C)

Don't quite understand the question. When you buy it, you get the ED-C adapter. I need this for my Canon EOS 5 DSR.
But I still have an EC-C adapter which I don't need. Please contact me if you need it. perosatti (ät) bluewin.ch.

I only have the EC-c adapter. But for my EOS 7D Mark II I need ED-c.

I only have the EC-c adapter, but I need an ED-c adapter.