Tackform 20mm Aluminum Ball to 17mm Ball Adapter Compatible with Garmin and Other GPS Devices with 17mm Balls

Ball adaptor for a good price, it works only thing is it took a long time to ship

The 20mm ball end was under-sized, so would not tighten in the fixture without using electrical tape.

Need to be a little thicker. But if you add some rubber will work better, size is perfect

Pleasantly surprised by the quality of the adapter. It is constructed of steel and has a textured finish on each on the 17mm and 20mm ball ends of the dog bone adapter. It worked perfectly!

The 17mm is the old Garmin size. 22mm is the new size but this a 20mm which fits who knows what? Its made well but...

Purchased to match up a different holder for a phone, using the bulletpoint mounting system. A little expensive for a small piece of steel but it’s life I guess

I used this to attach my Furrion camper camera monitor to my Bulletpoint mounting system in my 21 F250. It worked fine, although the fit into the Furrion socket was pretty tight. Took a good bit of force to get it in. I guess the good thing is it actually holds its position pretty well, as the monitor is fairly heavy.

Does what it is intended to do.

Great quality, the ridges help adhesion and it fit perfect with my Bulletpoint arm to otterbox magsafe charger!

Solid, quality construction. Fit my Garmin GPS perfectly! Buy with confidence!