OkeMeeo Fish Finder Mount Compatible with Humminbird Helix 5/7 Series, Marine Grade Aluminum, 360 Degree Rotation, 5.19" Long Arm

["COMPATIBLE WITH HUMMINBIRD HELIX 5/7 SERIES: Mounting plate for Humminbird Helix 7, Helix 5, HELIX 5 DI, HELIX 5 DI GPS, HELIX 5 SI GPS, HELIX 5 SONAR GPS, HELIX 5 SONAR, and HELIX 5 XD GPS.","360 DEGREE ROTATION: The dual 1.5\" ball joint system allows full 360-degree rotation and tilt adjustment, giving you the best viewing angle for your fish finder at all times.","MARINE GRADE ALUMINUM CONSTRUCTION: Built from salt spray tested 6061-T6 aluminum alloy with III Grade Hard Anodized finish and CNC machining for lasting durability on the water.","5.19\" LONG ARM: Features a powder coated 6061-T6 aluminum arm with anti-slip grooves and a high strength composite knob secured by a 314 stainless steel screw for a firm, stable hold.","COMPLETE MOUNTING KIT: Includes a 1.5\" ball fish finder mounting plate, C size long arm, 1.5\" ball round mounting base, all necessary screws, bolts, and a wrench for easy installation."]