Ram Mounts 1.5-Inch Ball Marine Electronic Mount
This is made of some high quality material. I was worried about it rattling or shifting from waves and chop but it locks in place and stays there!<br /><br />I really love the design and how you can adjust it for just about any angle or direction. I mounted my Humminbird side image unit to it. I can now turn it in such a way so I can see it while on the casting deck, as well.