RAM® Large Marine Electronics Ball

The rubber ball pivots smoothly and locks tight—perfect for my fish finder mount. Drilling the pre-drilled holes was straightforward, and the plate feels solid enough for offshore use.

The 3x11 plate is plenty wide for my setup, and the 1.5" ball locks tight with no wobble after a week of rough water. Pre-drilled holes lined up perfectly with my existing mount, so install took under ten minutes.

That rubber ball gives you so many positioning options, I was able to fine-tune the screen angle perfectly on my boat's dash. The 1.5" ball locks solidly in the mount, even with the engine vibrating, and the flat plate has been rock-stable since day one.