The RAM® Single Pivot Magnetic Mount with Knob (RAP-101-PV4-MAG88U) is a low-profile, magnetic mounting solution. One end features both 2-hole and 4-hole AMPS patterns to easily install any RAM® holder or GDS® dock while the other end features the RAM® Tough-Mag™ magnetic base. This solution uses tooth-lock washers to allow users to pivot their device up to 180-degrees and the extended knob makes it easy to adjust the viewing angle of your device. The RAM® Tough-Mag™ base 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.