【NOT compatible with: the Humminbird Helix 5, 7, 8, 9, 10, 12, 15, the Solix 10】 Package Includes: The marine electronic mount consists of a 2.4" diameter round base, a 5.91" long double socket arm and a 6.25" x 2" marine electronic rectangular plate The c size 1.5" rubber ball ensures a secure grip, capable of supporting up to 15.5 lbs at rest and 4.5 lbs in motion, while allowing for 360-degree rotation. Equipped with heavy-duty multi-angle drill base solution for easy mounting on boats, or other marine vessels. Compatible with a wide range of fish finders, GPS chartplotters, and other marine electronics from brands such as Garmin, Humminbird, Lowrance, and more. Compatible with Garmin: GPSMAP 722, 722xs, 723, 723xsv, 742, 742xs, 743, 743xsv, Striker Plus 5cv, 7cv, 7sv, 7cv, 7sv, ECHOMAP Plus 72cv, 73cv, 74cv, 75cv, 77cv. Compatible with Lowrance: HDS Carbon 7, HDS LIVE 7, Hook Reveal 7 Series, Hook Reveal 9 Series, Elite FS 7, Elite FS 9. Compatible with Humminbird & Raymarine Fish Finders, GPS Chartplotters. (NOT compatible with: the Humminbird Helix 5, 7, 8, 9, 10, 12, 15, the Solix 10). Aluminum Alloy Marine Electronics Fish Finder Mount This heavy-duty mount features a 5.91" double socket arm with a 1.5" ball joint, providing a secure, 360-degree adjustable hold for your device. The robust design supports up to 15.5 lbs at rest and 4.5 lbs in motion. Its versatile drill base allows for easy installation on various surfaces. The package includes a round base, arm, and a 6.25" x 2" rectangular mounting plate. Broad Compatibility: Works with many Garmin, Lowrance, Humminbird, and Raymarine fish finders or chartplotters (e.g., Garmin ECHOMAP Plus/Striker Plus series, Lowrance HDS/Hook Reveal series). Note: Not compatible with Humminbird Helix or Solix 10 models.