This is a used set of Millway camber plates for BMW M2 Competition, M4 (early M4 may need the 3 bolt version - check your fitment), M3, and other similar vehicles. I had these on my M2 Base with the addition of the M2 Competition front strut brace. If you have a Base M2 (2016-2018) you can add these camber plates if you also add the front strut brace - see my other listings.
Here is the manufacturers product page: https://www.millway.se/camber-plates-street-bmw-m2c-m4.html