This heavy-duty car cup holder mounting pedestal replaces, upgrades, or adds to an existing pedestal and is compatible with Arkon Dual-T holders and pedestals, (sold separately), including the Slim-Grip Universal Tablet Holder (TAB001), Universal Tablet Push-Button Holder (TAB003), Slim-Grip Ultra Universal Smartphone and Midsize Tablet Holder (SM060-2), and Mega Grip Universal Smartphone Holder (SM040-2). The mount is also compatible with older model (2005-2009) Magellan Roadmate, Triton, and Maestro GPS units that feature the Dual-T-Slot mounting pattern. The one-piece base fits easily into car or truck cup holders and twists to expand from 2.6" to 3.7" inches in diameter. For a complete solution featuring Arkon's Slim-Grip Universal Tablet Holder, see Model TABRM023.