The RAM® Tough-Mag™ Heavy Duty Magnetic Mount with Diamond Plate - Short (RAM-138-B-MAG88U) features a short length double socket arm, one 2.43" x 1.31" diameter round base, and one RAM® Tough-Mag™ base. This heavy duty magnetic solution features C size components from our patented rubber ball and socket system, allowing the system to adjust at both ends of the socket arm. The rubber ball and socket technology allows for almost infinite adjustment to provide ideal viewing angles and dampens shock and vibration to extend the life of your device. The RAM® Tough-Mag™ features 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.