B&M 80534 QuickSilver Replacement Billet Shifter Knob with SAE Threads Enjoy the fit and finish of a B&M handle on many aftermarket shifters Manufactured from attractive and durable CNC machined aluminum Includes an engraved insert with B&M logo Includes SAE thread inserts to fit shifters sized 1/2-20, 3/8-24, 3/8-16, and 5/16-18 Backed by the manufacturer with a 1 year limited warranty