Superior Compatibility - 1.5 inches ball universal mounting plate for fish finder, GPS chartplotters and more. Perfectly compatible with 1.5 inches / C size / 38 mm arm systems from manufacturers such as RAM Mounts, Arkon, iBolt and others. (complimentary stainless steel screws)

Designed for Marine Environment - Constructed from Powder-Coated Marine-Grade Aluminum and tested for thousands of hours in salt spray to ensure reliability and stability in the harshest environments. 1.5" Ball Made of Marine-Specific, High-Strength Composite Material that is more resistant to corrosion than industrial rubber coatings.

Longer Service Life - The ball and mounting plate are Molded in One Piece, rather than screwed together, for longer service life and to ensure the stability of the device. Relative to the 1" ball, the 1.5" ball is more reliable and stable in harsh marine environments.

Compatible with Garmin: ECHOMAP CHIRP 72, 73, 74, 75, ECHOMAP CHIRP 92, 93, 94, 95, ECHOMAP Plus 7", ECHOMAP Plus 9", ECHOMAP UHD 6", ECHOMAP UHD 7", ECHOMAP UHD 9", ECHOMAP UHD2 5", ECHOMAP UHD2 7", ECHOMAP UHD2 9", GPSMAP 7" Series, GPSMAP 8" Series, GPSMAP 9" 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, HDS LIVE 9, HDS PRO 9, 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, Xplore 9, other Fishfinders and GPS Chartplotters