RAM Mounting Systems RAM-D-111-C-KNOB9H D Size 2.25" Ball Mount with 11" X 3" Rectangle Plate, 3.68" Round Plate and Hi-Torq Wrench GROUP+ambassador-marine-trinidad-2h-external-shower-mixer-small-sprayer Batteries - 2 AAA Alkaline

Batteries - 2 AAA Alkaline (Included)

It comes with built-in support for Garmin CHIRP sonar along with CHIRP ClearVü and CHIRP SideVü scanning sonars

Third Party Dimmer Compatibility (3PD): Yes

Protect Your Boat's Gelcoat

RAM Mounting Systems RAM-D-111-C-KNOB9H D Size 2.25" Ball Mount with 11" X 3" Rectangle Plate, 3.68" Round Plate and Hi-Torq Wrench GROUP+ambassador-marine-trinidad-2h-external-shower-mixer-small-sprayer Batteries - 2 AAA AlkalineD Size 2. 25" Ball Mount w 11" X 3" Rectangle Plate, 3. 68" Round Plate and Hi Torq Wrench The RAM D 111U C consists of a short double socket arm, 3. 68" diameter round base and 11" x 3" rectangular base. The round base contains pre drilled holes, including two holes at 180 degrees and three holes at 120 degrees. The rectangle base contains different combinations of pre drilled holes which will match up to many electronic devices and mounts, including