Heavy-Duty Marine Construction: Crafted from marine-grade aluminum with stainless steel hardware, this fish finder mount withstands 1000+ hours of salt spray testing. Resists corrosion in high-salinity environments, supporting 15.5 lbs static and 4.5 lbs dynamic loads for unmatched durability on boats or kayaks Universal Kayak & Boat Compatibility: Includes a 2.4” AMPS base and 6.23”x2” mounting plate for secure installation on any flat surface. The C-size3.42” double socket arm ensures stability in rough waters, ideal for kayak fish finder mounts or marine dashboards Precision Fit for Major Brands: Compatible with Garmin ECHOMAP UHD2 5-9”, GPSMAP 7-9”, Striker Vivid 5-9sv; Lowrance HDS LIVE/PRO 7-16”, HOOK Reveal 7/9; Humminbird Helix 8/9 (excludes 5/7/Onix). Seamlessly integrates with marine GPS, depth finders, and chartplotters 360° Adjustable Viewing: Dual ball joints and a double socket arm enable 360° rotation and 0-90° tilt. Optimize angles for depth finder mounts or radar screens without obstruction, even in dynamic conditions Expandable Heavy-Duty System: AMPS-compatible plate supports RAM/Arkon/iBolt 1.5” arms. Pre-drilled holes fit gimbal brackets, transducer arms, and multi-device setups, perfect for heavy-duty fish finder mounts on boats or kayaks Important Note: This list contains only one set of brackets; it does not include fish finder equipment Heavy-Duty Marine Construction: Crafted from marine-grade aluminum with stainless steel hardware, this fish finder mount withstands 1000+ hours of salt spray testing. Resists corrosion in high-salinity environments, supporting 15.5 lbs static and 4.5 lbs dynamic loads for unmatched durability on boats or kayaks Universal Kayak & Boat Compatibility: Includes a 2.4” AMPS base and 6.23”x2” mounting plate for secure installation on any flat surface. The C-size3.42” double socket arm ensures stability in rough waters, ideal for kayak fish finder mounts or marine dashboards Precision Fit for Major Brands: Compatible with Garmin ECHOMAP UHD2 5-9”, GPSMAP 7-9”, Striker Vivid 5-9sv; Lowrance HDS LIVE/PRO 7-16”, HOOK Reveal 7/9; Humminbird Helix 8/9 (excludes 5/7/Onix). Seamlessly integrates with marine GPS, depth finders, and chartplotters 360° Adjustable Viewing: Dual ball joints and a double socket arm enable 360° rotation and 0-90° tilt. Optimize angles for depth finder mounts or radar screens without obstruction, even in dynamic conditions Expandable Heavy-Duty System: AMPS-compatible plate supports RAM/Arkon/iBolt 1.5” arms. Pre-drilled holes fit gimbal brackets, transducer arms, and multi-device setups, perfect for heavy-duty fish finder mounts on boats or kayaks