Works with all brands of RV Awning. Will not work on awnings with Uniguard. Rollers on all brands of longer awnings will have a tendency to bounce and flex during travel. This can over time lead to the roller taking a permanent set, causing wobbly roll-up and an undesirable canopy. The Carefree Awning Support Cradle receives the roller and supports it eliminating sag. Ground Support Sold Separately.