ARKON 25mm Ball to 17mm Ball Adapter - Black - SP25MM17

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This product does not fit Garmin 17mm products. You have to buy their adaptor plate to make it work which defets the whole purpose ofhaving a 17mm ball. Read everything then youll move on to another product!

Works for Ram mount add ons.

I was able to use this to convert the mount from my rear backup caemra screen to be used with my existing ram mount products. Exactly what I needed and whats perfectly. Dimensions of both balls are perfect.

I purchased this adapter to convert my Ram X phone holder to a GPS mount Thumbs Up!

I went with this because the RAM brand ones are like four times more, after two years the RAM brand parts inside the truck still solid but this one turned into rubber and started falling apart but..... so cheap Ill probably get 2 now since is just for my phone inside the truck. Just FYI, dont trust this to mount equipment that is worth thousands of dollars like a fancy fishfinder etc. that will go plunk down to the bottom of the ocean if this ball mount breaks lol

Perfect for Garmin montana base.. very stiff grip for my base.. superfast delivery from USA to Greece.. thanks

Usually you see some reviews, it wont fit, had to modify, and worry. I figured eh, for $5 whatever, lemme try it. As soon as I got it, tested it out and boom, insta happy. It fit and works great.

Does the job

The small ball is a little to small and my garmin is very loose fitting. I made it work but it’s not ideal.