RAM Mount Marine Electronics Mount - Gimbal Bracket Under 5lbs. [RAM-B-111U]RAM 1" Diameter Ball Mount with 6. 25" X 2" Rectangle Base & 2. 5" Round Base The RAM B 111U, powder coated marine grade aluminum mount, consists of a double socket arm mount, one 2. 5" diameter round base with 1" rubber ball and flat 6. 25" x 2" rectangular plate. The plate contains different combinations of pre drilled holes which will match up to many electronic devices and mounts, including Marine GPS, CB Radios, Ham Radios, Gimbal Brackets and