Product Dimensions:9 x 9 x 9 cm; 620 Grams Item Weight:620 g Features:1. Billet aluminum body, good bearing capacity, durable in using.2. With 6 long screws and 6 short screws for various snap off needs, ball-lock type mechanism for best locking fit and usability.3. Easy to operate, direct bolt-on, fast detach allows steering wheel to be removed quickly.4. Push-pin security feature prevents premature unlocking, with screw-driven tools for easy locking.5. Compatible with 6-hole steering wheel hub kit, designed for many aftermarket racing steering wheel.Specifications:Material: Aluminium Alloy + RubberColor: Black, Blue(Optional)Total Height: 6cm/2.36''Hub Adapter Diameter: 8.3-8.9cm/3.3'' x 3.5''Package Weight: Approx. 650gFitment: For most of steering wheel and aftermarket kit with 6-hole adapterPackage Included:1 * Quick Release Adapter6 * Short Fitment Screws6 * Long Fitment Screws2 * Allen KeysNote:1. Please conform the size & fitment to make sure that this release adapter fits for your car wheel steering before ordering.2. Please allow 0~1 inch error due to manual measurement. Thanks for your understanding. About this item [Easy to Use]: Direct bolt-on, easy to operate; Fast detach allows steering wheel to be removed quickly [Fitment]: Compatible with 6-hole steering wheel hub kit, designed for many aftermarket racing steering wheel; Perfect fit in, enhances driving position thus better vehicle control [Material]: Adopts aluminum body, the wheel hub adapter features good bearing capacity, sturdy an durable in using [Package Includes]: Comes with 1 pack of quick release adapter, 12 screws and 2pcs Allen key [100% Satisfaction]: If you have any question about this item, please feel free to contact us, we will try our best to help you solve your problem See more product details [Easy to Use]: Direct bolt-on, easy to operate; Fast detach allows steering wheel to be removed quickly [Fitment]: Compatible with 6-hole steering wheel hub kit, designed for many aftermarket racing steering wheel; Perfect fit in, enhances driving position thus better vehicle control [Material]: Adopts aluminum body, the wheel hub adapter features good bearing capacity, sturdy an durable in using [Package Includes]: Comes with 1 pack of quick release adapter, 12 screws and 2pcs Allen key [100% Satisfaction]: If you have any question about this item, please feel free to contact us, we will try our best to help you solve your problem