Ram Mount Twist Lock Suction Cup Mount for the Garmin nuvi 3450, 3450LM, 3490LMT, 3750, 3760T, 3760LMT, 3790T and 3790LMT Consists of a 3.25" suction cup locking base, socket system and custom high strength composite cradle for Garmin nuvi 3000 series GPS devices Designed with a RAM 1" diameter patented rubber ball and socket system Allows 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 device RAMs patented design also dampens shock and vibration helping to extend the life of your device Patented universal rubber ball and socket system allows you to mount virtually anything anywhere. Made of marine grade aluminum with a powder coated finish and rubber balls Superior shock and vibration isolation for electronics Unique design provides easy installation, mobility, strength, adjustability and versatility Construction provides a light weight and corrosion resistant product