Feature 1High strength aluminum alloy material, extremely strong tolerance 2Fast detach allows steering wheel to be removed quickly 3Designed with ball lock joint for maximum security 4Easy to install and uninstall, convenient and ensure safety 5Suitable for most types of steering wheels and aftermarket boss kitFeatures: High strength aluminum alloy material, extremely strong tolerance. Fast detach allows steering wheel to be removed quickly. Designed with ball lock joint for maximum security. Easy to install and uninstall, convenient and ensure safety. Suitable for most types of steering wheels and aftermarket boss kit. Specifications: Condition: 100% Brand New Material: Aluminum Alloy Color: Red, Black, Blue (optional) Diameter: 9.5cm/3.7in Height: 3.3cm/1.3in Package Weight: approx.291g Fitment: Universal Package List: 1 * Quick Release Adapter 6 * Screws 1 * Wrench Note: Instruction is not included, professional installation is always recommended.