The RAM-B-132SU consists of a 3.25 suction cup locking base and self leveling drink cup holder. The mount is designed with a RAM 1 diameter 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 design also dampens shock and vibration helping to extend the life of your mobile device. Material: High Strength Composite and Powder Coated Marine Grade Aluminum Ball Size: 1 Rubber Ball B Size