Description: Material: Aluminum Alloy Color: Black, Red, Blue, Sliver. Height: 70mm/2.76" Width: 51mm/2.01" Mount open Diamater: 16mm/0.63" Equipment: universal for cars with manual transmission in Fitment: fits most M8, M10, M12 Installation: 1. Remove the gear shift rod head in 2. Choose the right size adapter and put it into the gear stick in 3. Put the gear knob into the adapter, the installation is complete Please note: 1. Universal gear shift knob, but some cars can't fit. These 2 types of gear knobs can not fit: -1.1 instruction: you have to lift to get into the reverse gear (namely, reverse gear R in the upper left corner) -1.2 automatic: the reverse gear has a 2 button. Make sure the item is a suitable replacement for your car. 1 * Gear Shift Knob in 3 * Adapter (Product color depends on your choice) Please read the specification carefully before ordering. Please feel free to know us if you have any needs or problems with the product. If you are not satisfied with our product or service, please give us a negative review before you leave it. Thank you for your understanding.