The 13, 15, 18 Chrome Speed Adapter With Thread-On Chrome T-Shape Gearshift Knob is a practical and efficient solution for your Eaton Fuller type shifter. Made from durable aluminum casting with a sleek chrome finish, this adapter and gearshift knob combo offers a secure and comfortable grip. The 1/2 inch 13 thread-on adapter base ensures a perfect fit, while the removable thread lock adds extra security. Compatible with most Eaton Fuller type shifters, this product is not suitable for models equipped with D-shape shift knobs. Upgrade your gear shifting experience with this reliable and stylish accessory.