Description: Made of High Quality Aluminum, Rubber and Stainless Steel,wear resistant and rust proof.. Direct Bolt-on Design, Perfectly fits Any Wheel with a 6-Bolt Standard Design. Fast Detach allows steering wheel to be removed quickly. Does not include instruction,Professional installation required. For Nissan. Specification: Material: ?luminum Size: Approx 80*70mm Package Includes: 1 Piece Quick Release Adapter 6 Pieces Screws 1 Piece Allen Key Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you