Note:Not compatible with Drivesmart 86,Garmin aera 660 / 760, Overlander, RV 1090 / 1095 / 890, Dezl OTR1000 / OTR1010 / OTR800 / OTR810, Dash Cam models, or Furrion and other backup monitors. Aluminum Alloy:The GPS mount's double socket arm is die-cast from aluminum alloy, and the base is formed by a one-piece die-cast aluminum alloy component with a high-hardness TPU ball injection-molded at the top. The one-piece die-casting ensures its durability and resistance to breakage. Sturdy Build: Thanks to its aluminum alloy construction, this GPS mount boasts an outstanding load-bearing capacity. The double socket arm effectively transforms the force exerted by the knob, ensuring that once tightened, your preferred angle is securely maintained. Even when traversing uneven terrain, it retains its robustness, establishing itself as a dependable option for securing your GPS mount Versatile Rotation: With two 1-inch adjustable ball joints and compatibility with the 1-inch mounting system, our GPS mount provides complete rotation freedom. The unique design of the double socket arm allows precise angle adjustments, ensuring you find the perfect viewing angle with a 1-degree precision. Swiftly switch between landscape and portrait orientations for seamless adaptability. Compatible with Garmin GPS & More Fits devices with 17mm ball sockets, including those for Garmin Nuvi, Dezl, Drive, Drivesmart, Zumo, DriveAssist, DriveLuxe, and RV series, as well as universal 17mm phone holders. 17mm to 25mm Dual Ball Adapter Included Features a dual-ball design with a 17mm ball on one end and a 25mm ball on the other, allowing seamless connection between 17mm-compatible devices and 25mm socket arm systems—ideal for mounting phones, GPS units, or other navigation accessories. Upgrade your mounting setup with this heavy-duty aluminum GPS mount, built for secure, stable installation on dashboards and other flat surfaces. The included [17mm to Large Ball Dual Adapter] allows you to connect popular 17mm-compatible phone holders or navigation devices to a wide range of mounting arms. With a solid drill-base foundation and a versatile ball joint design, this mount delivers excellent adjustability and long-term reliability—even in vehicles that travel over rough terrain. It’s a dependable replacement for traditional suction cup windshield mounts, offering a more permanent and vibration-resistant solution for cars, trucks, RVs, and off-road setups. Compatible with mounting systems and accessories for Garmin Nuvi, Dezl, Drive, Drivesmart, Zumo, DriveAssist, DriveLuxe, and RV series, this mount brings flexibility and cross-compatibility to your dashboard. Whether you're securing a GPS or phone, this compact, all-metal system offers a clean and professional upgrade to your mounting solution.