- 38mm AMPS ball mount base with industry-standard AMPS hole pattern. Made from rubber and aluminum for a stable, lightweight foundation for mounting devices. - Solid foundation for devices. The ball base securely accepts mounting arms or device holders on the integrated 38mm AMPS ball mount for a stable overall platform. - 1.5 inch ball mount included. The C-size rubber ball connects to any C-size double socket arm. Ball-and-socket design provides near-infinite adjustability for precise viewing angles. - C-size ball base mount built to last. Powder-coated marine-grade aluminum delivers durability and reliability in demanding environments. Use scenarios: - Marine applications: mount chart plotters, fish finders, or other instrumentation on boats for secure, corrosion-resistant mounting. - Automotive or RV installs: attach tablets, GPS units, or rugged displays for hands-free navigation and control. - Industrial or outdoor work: secure rugged tablets or control panels in factories, kiosks, or outdoor installations where exposure and heat are factors.