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

Bought this to mount my Garmin gps bracket to a RAM arm. Worked perfectly for an older Garmin gps and a Zumo bracket too.

Item arrived as described and the concept is good, however like the previous reviewer I find the ball on the 17mm side is too small. It holds okay sitting still but bumps will cause the face of the GPS to flop around. The 17mm ball should have been made a tiny bit bigger. The ball on my OEM Garmin suction cup mount holds the device just fine. I ordered the RAM cradle mount instead.

Does the job

Worked for connecting my phone holder (which had a 17mm hole to my 25mm arm).

Who knew. Able to use some of my old Garmin gps mounts with a 1 ram mount

Excellent solution

Ended up I ordered wrong type sure would do great job

Works well for joining ram mount B size ball and garmin gps attachment

Good product but very long shipping time for such a small thing

The 17mm ball end is too small to securely hold a small Garmin NUVI GPS unit, the unit should pop onto the ball and have enough friction that the GPS will hold in position. Due to poor tolerance in the manufacturing of the ball end, the GPS unit flops around at every bump and turn. Definitely wasted money.