For ceilings shorter than 7'4", there are three options:
Shorten the PFD Chrome Pro Quality Pole with a 500mm extension
Shorten an XPert Model X-Pole with an extra 750mm extension.
Here is a great article that goes into depth about how to choose the best pole for your ceiling height =>
That article talks about shorter ceilings and will help you choose the right pole for you : )