RAM Adapter Plate with 1.5" Ball and Hardware for Garmin GPSMAP / Fish Finder

Features: 2.5" round base with 1.5" rubber ball Pre-drilled universal AMPS hole pattern Includes mounting hardware to attach compatible Garmin Fish Finders & GPSMAP Rubber ball fits a variety of RAM arms with 1.5" ball sockets Constructed of powder coated marine grade aluminum Holds up to 4 lbs. Made in the USA Compatible Devices Garmin Fish Finder: models 80 - 120 Garmin GPSMAP: models 172 - 555 Brand: RAM MountsPart number: RAM-202-G2UWarranty: Manufacturer's lifetime warranty