The RAM-107U consists of a double socket arm, 2.5" diameter round base with the universal AMPS hole pattern and connecting Humminbird/Apelco marine adapter base. The mount is designed with a RAM 1.5" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; thus allowing for almost infinite adjustment and perfect viewing angles. Rubber ball and socket technology allows for almost infinite adjustment and perfect viewing angles.
Overall Height: 7.35"
4-Hole AMPS: 1.181" x 1.496"
3-Hole 120-Degree: 1.812" Diameter
Top Plate: 4.25" x 3.81"
Round Plate: 2.5" Diameter