The Champion Goalsetter Basketball Goals are the smallest of the Signature Series. This system has a 48 inch backboard and be personalized with your choice of height-adjustment mechanism and rim. The height-adjustment mechanisms available are internal, external, and fixed height. The internal mechanism has most of the parts of the system enclosed in the pole. The external mechanism has most of the parts of the system outside of the pole.
The next model up from this basketball hoop system is the All-Star goal. What you gain from the upgrade is a larger backboard, 54 inches. Everything else is the same, i.e. same size pole and same configuration options.