For Nissan Fairlady Z/Altima/Maxima/Sentra Hub Adapter+Gold 2.25" Quick Release Hub - Made of High Quality Aluminum, Rubber and Stainless Steel / Direct Bolt-on Design Quick Release - 2.25" Thick / 3.5" Diameter / Two-Way 6-Holes Patterns Design Racing Style, for Most Aftermarket Racing Brand Steering Wheel Comes with Hub, Quick Release and Installation Hardware Instruction NOT Included, Professional Installer is Highly Recommended