Phon holder ball size

  • I originally bought the phone holder in vent configuartion.  My iphone seems to be too heavy.   Over a whole day of backroads driving, it fell off 3/4 times.   Just a big heavy phone.   I'd like to try it in the cupholder config.  Assuming the female vent prongs just og over the ball on the cup mount?   If so, 17mm ball size?

  • The air-vent phone holder has a 15mm ball size, but it will be hard to replace with another 15mm ball.

    In the version with the cup holder base, we are reusing metal ball mount assembly.

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