This 13, 15, 18 Chrome Speed Adapter comes with a Thread-On Chrome Pistol Grip Gearshift Knob, making it a practical and stylish addition to your vehicle. The adapter features an aluminum casting and a chrome finish, while the gearshift knob is also chrome. The 1/2 inch 13 thread-on adapter base is compatible with most Eaton Fuller type shifters, and a removable thread lock is included. However, it is not compatible with models equipped with D-shape shift knobs. Sold individually, this adapter is a great choice for those looking to upgrade their vehicle's gearshift.