Product Details The RAM Mounts for Humminbird Helix 8-15, Solix & Apex fish finder models, including the Helix 8, 9, 10, 12, 15, Solix 10, 12, 15, and Apex 13 and 16. This mount for Humminbird is made of powder-coated marine-grade aluminum and includes a short double socket arm, a 3.68″ round base with a 2.25″ D size ball, and a rectangular plate measuring 1.5″ x 4.5″ with a 2.25″ D size ball. The round plate features two mounting holes at 180 degrees and three mounting holes at 120 degrees. The rectangular plate contains a 4-hole pattern compatible with various Humminbird models Using rubber ball-and-socket technology, RAM Mounts provide optimal shock and vibration damping while offering limitless adjustability to achieve the optimal viewing angle for your device. The RAM Drill-Down Ball Mounts for Humminbird Helix 8-15, Solix, and Apex fish finders are your flat-surface drill-down mounting solution, backed by the manufacturer’s lifetime warranty. RAM ball and socket technology allows for near-infinite adjustability for the perfect viewing angle Powder-coated, marine-grade aluminum for durability and reliability in the most demanding marine environments 2.25 diameter D-size ball Overall height: 7.875 in. Model #: RAM-D-202-25-C-202 Manufacturer’s lifetime warranty This item does not qualify for expedited shipping. Prop 65 Warning Video Customer Reviews Be the first to write a review Write a Review