Pilot Automotive PM-2243 Motorsport Manual Stick Shift Knob Fits shifter stems from 5/16 inch to 9/16 inch (8mm - 15mm) . Adaptors included. Step by step instructions inside package. Shift knob will work on manual transmissions but does not fit automatic transmission shift knobs with gear shift release button .or overdrive button. Please measure the diameter of the stick threads to confirm size before making purchase.