This bush features a CNC-machined Stainless Steel sleeve with an offset bore that can be rotated using our bespoke tooling (supplied), giving +/- 0.5 degrees of on-car camber adjustment. For the smaller 30mm bush, please use part no. PFF85-201GBLK. CNC machined stainless steel sleeve with knurled end pattern to prevent unwanted rotation.  Rotate to adjust camber.