Ram Mount RAM-B-101U-C 1-Inch Diameter Ball Mount with Long Double Socket Arm (Black) Consists of a LONG double socket arm and two 2.5" diameter round bases that contain the universal AMPS hole pattern This allowing for almost infinite adjustment and perfect viewing angles The included RAMs patented design dampens shock and vibration, helping to extend the life of your device Overall Height: 7.3125" Powder Coated Marine Grade Aluminum