Whether your building a custom race truck, a daily driver, or just want to add some style to your interior, the B&M Billet Shift Knob is a great option. Constructed from CNC machined billet aluminum with a brushed finish and includes an engraved insert with the B&M logo to finish it off. Fits all B&M shifters and any shift stick with SAE threads. Thread adapters included with the shift knob are 1/2-20, 3/8-24, 3/8-16 and 5/16-18 SAE threads.