5 Speed Shift Knob Stick Shifter Manual JDM Aluminum MT Gear Black Chrome Gear Shift Knob For most vehicles with 5 speed Manual transmission. With 3 Plastic adapters (8mm,10mm,12mm) for easy fitment. Remove (twist, unscrew) your old gear knob.Then insert the knob back to your car. Material: aluminum alloy. Color:Black. Package: Gear Shift Knob x 1; Installing adapter x 3 (8mm,10mm,12mm).