The Thread-On T-Shape Gearshift Knob with 9/10 Speed Adapter is a practical and versatile product designed for Eaton Fuller 9/10 shifters. Made from durable die-cast aluminum, this gearshift knob features a chrome adapter base and a machined 1/2 inch-13 thread adapter base for easy installation. Available in chrome, indigo blue, and candy red, each knob comes with a removable thread lock to prevent loosening of the shift. With its compatibility and high-quality construction, this gearshift knob is a reliable choice for enhancing your shifting experience. Please note that it is not compatible with models equipped with D-shape shift knobs.