These fit all BMW E24 (late) and all E28 series.
Strut spacers - roll center adjusters
These bring the steering arm/knuckle down to help correct the suspension/steering geometry on lowered cars.
25mm thick 6061 aluminum. You get a pair with each purchase, enough to do both driver and passenger sides.
Please see the YouTube video for an explanation of how these work.https://youtu.be/E3atzHcqeNE