The RAM® Drill-Down Marine Electronic Mount (RAM-111U) is a rugged, fully adjustable mounting solution designed for reliable performance on the water. Constructed from powder-coated, marine-grade aluminum, this system includes a C size double socket arm, a 2.5" diameter round base, and a 6.25" x 2" rectangular adapter plate for secure device mounting. The rectangular adapter features multiple pre-drilled hole patterns, making it compatible with a wide range of marine electronics and mounting configurations, including fish finders, marine GPS units, CB and ham radios, gimbal brackets, and more.