The RAM-B-138-GA12 consists of a 2.5" diameter round base with the universal AMPs hole pattern,
standard length double socket arm, diamond adapter base and high strength composite cradle for
the Garmin GPSMAP. The mount is designed with a RAM 1" diameter patented 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.
4-Hole AMPS: 1.181" x 1.496"
3-Hole 120-Degree: 1.812" Diameter