The RAM-B-138U, universal marine grade aluminum mount consists of a flat surface drill down base and universal diamond plate. The hole pattern found on the diamond plate will connect to many RAM cradles, as well as third party cradles including mounts with the industry standard AMPS hole pattern. Designed into the mount is a 1" diameter patented rubber ball and socket system with adjustment points at the base and cradle. Rubber ball and socket technology allows for almost infinite adjustment and perfect viewing angles. High quality materials insure your device is safe, secure, and within easy reach. RAM's patented design also dampens shock and vibration helping to extend the life of your device.