Swingball pole.
It requires a replacement ball and tether, which I have seen can be purchased for just a few pounds.
Approximately 54.5 inches tall when both sections interconnected and separates easily for transportation and storage, see photographs.
Collection from Harlington, between Hayes and Heathrow.
Swingball Pole (Harlington UB3)
This offer has been gifted to someone and is no longer available.