Allows you to attach a shift knob to your shift base. Enter your shifter base type. Available for Logitech, Thrustmaster TH8A, TH8S, Fanatec, PXN, Moza HGP, Moza AB9, M8 Thread and M10 Threads. for "generic Shifters" These include a 1/2" x 13 Stud on top. All shift knobs on this site take 1/2" x 13 thread. These will work with any Eaton knobs and almost all other off brand shift knobs. Make sure to check the thread pattern of your knob if you do not have one from this site.