This black Hurst shift knob for 6 Speed manual transmissions is a great way to add the classic look and feel of shifting performance to your modified classic, or your modern day muscle car. The shift knob measures 1.88 inches round and features the 6 Speed pattern with Reverse up and to the right and has the Hurst logo engraved on both sides. Fits shift sticks with 3/8-16 thread size.