Remove your old shift knob from its lower collar and slide over gear stick shift.
Fasten the new inner collar to the top of the stick shift using the correct sized sleeve supplied (if needed) and firmly tighten the set screw with the allen wrench provided.
Now that the inner collar is securely attached to the stick shift, screw the TYPE S shift knob onto the inner collar and tighten.
Finally, screw the lower collar onto the TYPE S shift knob and tighten.