Found these in my 694 case

[Ewor]

2 identical “buttons” one side is slightly domed, the other is side is flat. Found in a clear plastic bag-no mention in instructions.

What are they???

 

[Paul120]

2 identical “buttons” one side is slightly domed, the other is side is flat. Found in a clear plastic bag-no mention in instructions.

What are they???

They look like spare ejector retaining discs.

 

[mpmilo]

This ^^^^^^ The domed side faces out from the action if you need to replace or lose one. I used to take mine out with a magnet every so often to clean ejector and springs when I had a 694.