The Arkon Universal Dash Mount has a new design that allows for a more stable mount with a smaller footprint. This mount works perfect with any suction mount with a maximum diameter of 3 inches. Simply lay the Arkon Bean Bag Dash Mount on your car or trucks dashboard and suction cup your GPS to it. The Arkon Bean Bag Mount also comes with a safety anchor for those extremely angled dash boards. Some units require a optional mounting cradle that was included with your Magellan RoadMate or Maestro unit.