Fit for Highlander 14-19. Mounting: Just remove the old part and install the new part. This shift knob can just fit 8mm/0.3in shift stick, not for 10mm/0.4in or 12mm/0.5in. Application: This shift knob can just fit 8mm/0.3in shift stick, not for 10mm/0.4in or 12mm/0.5in.