Purtroppo, questa descrizione non è stato tradotto in italiano, in modo da trovare a questo punto una descrizione inglese.
The steel lining of the FlexTrak resists twisting. The best way to get it into a case is to feed it directly in without twist. Porta-Jib has created a case that rotates to make loading easier.
To load, lay the track out in a relatively straight line. Pull the track to the case. As the case rotates the track conforms itself to the inside walls of the case. The wheels allow the case to spin easily.
Another advantage to having wheels is that you can push or pull the case, instead of having to carry it.