RAILBLAZA Fish Finder Mount R Lock Rectangular Base works with multiple brands and models on multiple watercraft. The versatile rectangle mounting plate offers multiple options. RAILBLAZA fish finder mount will work with Lowrance, Garmin and Humnmingbird marine products. This universal fish finder mount can hold units up to 3.3 lb. The fish finder mount R-lock has 3 axis mount has friction joints top and bottom featuring R-Lock lockable joints. The center joint is fully adjustable in 15-degree increments. Mount on angled surfaces and have your display level. Also with the correct RAILBLAZA mount, you can mount your fish finder on a rail, or inflatable tube! Fits most fishfinder brands, including Lowrance Hook2, Lowrance HDS, Lowrance Elite, Garmin Striker Plus, Garmin Echomap, Humminbird Helix, Humminbird ICE Helix.