The RAM-101-RM1 consists of a double socket arm, 2.5" diameter round base with the
universal AMPS hole pattern and 3.68" round base. The 3.68" round base contains
pre-drilled holes that connect to Raymarine devices listed below. Designed into the
mount is a 1.5" diameter patented rubber ball and socket system with adjustment
points at both socket ends of the arm. Rubber ball and socket technology allows for
almost infinite adjustment and perfect viewing angles.