Made of high quality rubber and stainless steel Racing style for most aftermarket racing steering wheels Direct bolt-on design fits perfectly on any wheel with a standard 6-bolt Allows users to instantly remove the steering wheel, users can remove the steering wheel to prevent car theft Only for ball bearing type release kits, professional installation is highly recommended : Fits for 840ci/850ci/850i/Z3/M3/E36/E39 Steering Wheel Short Hub Adapter Kit Color: Black Material: Rubber + Stainless Steel Package Contents: 1 * Adapter 2 * Wiring Harness 1 * Installation Package Only the above package content, other products are not included. Note: Light reflection and different Screens may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.