The RAP-101U-G4 consists of a 2.5" diameter round base with the universal AMPS hole pattern, double socket arm and round adapter base that attaches directly to the back of the Garmin echo™. 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; this with RAM's rubber ball and socket technology allows for almost infinite adjustment and perfect viewing angles. Included is hardware that is used to attach the Garmin echo™ to the RAM Mount.
(3) #8-32 x 5/8" Machine Screws
(3) #8-32 Nylock Nuts
4-Hole AMPS: 1.181" x 1.496"