This is the Canon Mount Adapter "EF-EOS R". I purchased it around the summer of last year and used it once outdoors and once indoors. I'm putting it up for sale because I don't have any plans to use it in the future. There are no noticeable scratches or stains, and I think it's in pretty good condition. [Included Items] Front and rear caps, dedicated case, instruction manual, warranty card (unfilled), original box Thank you!