Our Lido LM-803 cup holder mount has a 17mm ball head and is compatible with Garmin automotive devices. The 17mm ball can be attached to the socket on the back of the cradle that came with your Garmin GPS. This mount has a height adjustment which is a much with todays cars, since there is no standard where the gear shift knob, emeregency break are located. The mount height can be adjusted from 6" to 8" from the top of the base.
The two arm system allows you to get the perfect angle for the perfect view of your device.
The base can be expaned from 2 /12" to 3 3/4" in diameter simply by turning the adjustment knob on top of the base.
So it will fit most cup holders out there.