The Goalsetter ground anchor hinge system provides a solid foundation to ensure superior performance and durability. Complete installation of a Goalsetter basketball hoop can be done before it is raised upright. The anchor system allows for easy goal assembly with no ladders or scaffold. The hardware uses Magni 577 corrosion resistant coating. The anchor allows the goal system to easily move with you. This anchor is compatible with 4" x 4" pole sizes. Play the best with Goalsetter!