This configuration is built around a steel adapter attachment for secure installation on walls and other flat surfaces, combined with a short 1.5-inch ball arm. The 1.5-inch ball system is the stronger option in the DURA Arms range, making it better suited for heavier devices or more demanding daily use. With its compact arm length, it keeps the setup rigid, controlled, and stable without sacrificing adjustment. Compatible with any DURA Arms head or POS plate.