Made from Hollow Aluminum tubing. Strong, yet 1/13th the weight of the previous steel Extensions! Available in Black, White, Polished Aluminum, Blue, Green and Red. Comes with a 1/2" x 13 thread up top to directly install your Eaton Fuller shift knob with no adapter. Select your shifter base and it comes with the included adapter pre installed. Unless its Logitech. The Logitech adapter comes detached because it requires a set screw to go into your shifter base. You install the adapter onto your base using the included screw and then install the extension. Available in 6,9,12,18,24 and 36" lenghts. If another size or color is needed just message us!