The 13, 15, 18 Chrome Speed Adapter With Thread-On Candy Red T-Shape Gearshift Knob is a practical and versatile product designed for Eaton Fuller type shifters. Made from durable aluminum casting, it features a chrome finish on the adapter and a candy red finish on the gearshift knob. The 1/2 inch 13 thread-on adapter base ensures a secure fit, and the removable thread lock is included for added convenience. This product fits most Eaton Fuller type shifters, offering easy installation and compatibility. Please note that it is not compatible with models equipped with D-shape shift knobs.