The RAM-B-166-MA5U, twist lock suction cup mount consists of a 3.25″ suction cup locking base, socket system and custom high strength composite cradle for the Magellan eXplorist. The mount is designed with a RAM 1″ diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. Simply attach the suction cup base to the windshield of your vehicle for an easy and safe way to view your handheld device in your vehicle. High quality materials ensure your electronic device is safe, secure, and within easy reach. RAM’s patented design also dampens shock and vibration helping to extend the life of your mobile device. This mount is designed to hold the following devices: Magellan eXplorist 100 Magellan eXplorist 200 Magellan eXplorist 210 Magellan eXplorist 300 Magellan eXplorist 400 Magellan eXplorist 500 Magellan eXplorist 500 LE Magellan eXplorist 600 Material: High Strength Composite and Powder Coated Marine Grade Aluminum Ball Size: 1″ Rubber Ball „B” Size Note: The „U” in the part number reflects product packaged in poly bag. This mount will not hold the Magellan eXplorist XL. Related Links:RAM GPS Mounts PageRAM Suction Cup Mounts Page RAM® double socket arms with their distinctive hour-glass shape are designed and recognized to provide the best possible performance for most any application.