With the correct Railblaza mount, you can mount your fish finder on a rail, or inflatable tube. Fits most fish finder brands. Will take fish finders up to 1. 5kgs (3. 3 lb). mount on an angled surfaces and have your display level. This 3 axis mount has friction joints top and bottom featuring r-lock lockable joints (Pat pending). the centre joint is fully adjustable in 15-degree increments. All that remains on the deck once it's removed is a low profile Railblaza mount. A platform for mounting fish finders or chart plotters with square or round bases, making them Easily removable.