Made Of High Quality Material. Racing Style For Most Racing Steering Wheel Direct Bolt-On Design Perfectly Fits Any Wheel With a 6-Bolt Standard Design Enables Users to Steering Wheel instantly. Users are to take Steering Wheel off to Prevent Car Theft Fit on Ball Bearing Type Quick Release Kit Only Professional Install is Highly recommended Fitment: For M3 / Z3 1995 - 1998 For 318 / 325 / 328 1991 - 1998 For E39 540 1995 - 2004 For 850ci 1993 - 1999 For 840ci 1994 - 1997 For 850i 1991 - 1992 Type:Short Hub Adaptor color:Black Material:aluminum Package Contents: 1 x Short Steering Wheel Hub Adapter 1 x Mounting accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.