This is the original BMW spring plate for the upper / top side of the strut assembly on the 1995 E36 M3 3.0 liter, which had a unique front strut mount and spring perch / plate than the later model E36 M3 models. This spring plate was also used on the E34 540i V8 models as well.
This upper spring plate can be used on either the left (driver side) or right (passenger side) of the car.
This part is sold individually, so be sure to order two if you are replacing both upper spring plates.
BMW Fitments:
3 Series
E36 (92-99) > M3 (1995)
5 Series
E34 (89-95) > 540i