SPECIFICATIONS: Type: Gear Shift Knob Material: Aluminum Color: Black/Blue/Red Diameter: 33mm (1.3'') Height: 90mm (3.5") Thread Size of Adapter: M8, M10, M12 INSTALLATION: 1. Remove the original factory gear knob from shifter. 2. Measure the diameter size of the screw rod. 3. Place the new knob over the shifter and fasten the correct adapter. 3. Make sure the knob is firmly attached. FEATURES: Comes with 3 thread adapters. Easy to install, direct screw on installation. Comes with M8, M10, M12 adapters. No modification required from stock application so long as thread adapter matches. Improves the look and style of your vehicle. FITMENT : Universal fit for most vehicles so long as threaded adapter matches your vehicle. PACKAGE INCLUDED: 1 x Shift Knob 3 x Adapters All items are Brand New unless stated otherwise on the listing. We sell DIY (Do It Yourself) Items with a few exceptions. We take no responsibility in teaching you how to install. Professional installation is strongly recommended.