National Products RAM Mounts Vehicle Mount for GPS, Fishfinder RAP-B-101U-LO11

The RAP-B-101U-LO11 consists of a composite 2.5" diameter round base with the universal AMPS hole pattern, composite double socket arm and adapter base that inserts directly to the back of Lowrance Elite-4, Mark-4 and Hook 4 Fishfinders. The adapter serves as a quick release mechanism, allowing you to remove or transfer your Fishfinder in seconds. Designed into the mount is a 1" 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. Overall Height:5"