Heavy Duty - Extra strong load-bearing marine electronic mount is made of all aluminium and can hold up to 110 lbs. static and 22 lbs. dynamic. Remains strong and stable under the impact of waves. Securely holds screens over 10" and even 16". | Designed for High Salt Marine Environment - Constructed of Powder-Coated Marine-Grade Aluminum and Stainless Steel Hardware. The mount has been Salt Spray Tested for thousands of hours (including stainless steel bolts and springs) to resist high salt water corrosion. | Superior Compatibility - Heavy-duty mounting base down-drilled to mount on any flat surface, such as the dashboards, decks of boats and kayaks. The rectangle plate contains different combinations of pre-drilled holes to match many electronic devices and mounts, including Marine GPS, CB Radios, Ham Radios, Gimbal Brackets and more. (Complimentary 4 sets of 316 marine grade stainless steel machine screws, lock nuts and sheet metal screws). | 360 Degree Rotation - Two pivot points for 360-degree rotation. | Compatible with Garmin: ECHOMAP CHIRP 72, 73, 74, 75; ECHOMAP CHIRP 92, 93, 94, 95; ECHOMAP Plus 7", 9"; ECHOMAP UHD 6", 7", 9"; ECHOMAP UHD2 5", 7", 9"; ECHOMAP Ultra 2 10", 12"; ECHOMAP Ultra 10"; GPSMAP 7" Series, GPSMAP 8" Series, GPSMAP 9" Series, GPSMAP 16" Series; Striker 5, Striker 7, Striker Plus 5cv, Striker Plus 7 Series, Striker Plus 9sv, Striker Vivid 5cv, Striker Vivid 7 Series, Striker Vivid 9sv, other Fishfinders and GPS Chartplotters. | Compatible with Lowrance: Eagle 7, Eagle9, ELITE FS 7, ELITE FS 9, Elite-7 Series, HDS Carbon 7, HDS LIVE 7, LIVE 9, LIVE 12, LIVE 16; HDS PRO 9, PRO 10, PRO 12, PRO 16; HDS-5 Series, HDS-7 Series, Hook Reveal 7, Hook Reveal 9, HOOK-7, HOOK-9, HOOK2-7 Series, HOOK2-9, other Fishfinders and GPS Chartplotters. | Compatible with Humminbird: Helix 8, 9, 10, Solix 10, other Fishfinders and GPS Chartplotters