RAM Large Marine Electronics Base with 2.25" Ball

Features:   Rectangular 11" x 3" base with built in 2.25" rubber ball Combinations of pre-drilled holes on the plate match up to many electronic devices* Compatible with RAM 2.25" ball (D size) socket arms Constructed of powder coated marine grade aluminum Includes four 0.312" x 0.187" shoulder washers Holds up to 6 pounds Made in the USA   Compatible Devices:(sample list)* Garmin ECHOMAP Ultra 122sv ECHOMAP Ultra 126sv GPSMAP 1222/xsv Touch GPSMAP 1242xsv/Touch Lowrance HDS Carbon 9 HDS Carbon 12 Elite-9 CHIRP Elite-9 Ti Elite-9 Ti² Elite-12 Ti Elite-12 Ti² Plus many others Brand: RAM Mounts Part number: RAM-D-111BU Warranty: Manufacturer's lifetime warranty * The rectangle base is a universal mounting bracket with a selection of pre-drilled mounting hole locations. In certain applications additional holes may need to be drilled for proper fit with your electronic device.