The RAM® Tough-Mag™ Double Magnetic Ball Base (RAM-202-333-MAG88U) doubles up the strength of two RAM® Tough-Mag™ pucks to create a heavier-duty magnetic mounting solution for larger tablets or peripheral devices. This solution features a C size ball base, complete the mounting solution with your preferred device holder and C size arm. Each RAM® Tough-Mag™ is built with 10 industrial-strength N52 grade magnets that magnetize to any ferrous metal surface and rubber coating that protects the metal surface you're attaching to.