Arkon RVRMAG RoadVise Robust Magnetic Phone Mount (sku 56011)Mount features a 65mm heavy duty magnet base that attaches to flat, metal surfaces Fits phones measuring up to 4 inches wide Robust shaft provides double ball adjustment Arkons RVRMAG RoadVise Robust Magnetic Phone Mount features a 65mm heavy duty magnetic base that attaches to flat metal surfaces, including forklifts, metal cabinets and bookcases, and other warehouse locations. The mount securely holds phones with cases weighing up to 2 pounds and