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

Works perfectly for the application that I needed very stable fits my mounting options would definitely recommend this product

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

I recently bought some Bulletpoint mounting systems for two of my vehicles. I already had a charging phone holder I still wanted to use but they didnt fit the Bulletpoint system as it came. I needed these adapters and they worked perfect. They have held them great and Im very happy with them.

Great thing is this is exactly as advertised. Fits perfectly for my GPS.

Nicely milled and great finish.

Bought this to add my Garmin unit to my Bulletpoint mounting system. Works as intended.

Great for mounting 17mm ball devices to my 67 design Jeep Wrangler 20mm mounts.

Snaps right into my existing cellphone mount. Seems 17mm is the standard size.

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...