If you've put a RAM ball on the back of your Perfect Squeeze phone mount, then you'll need a RAM arm to go with it. Allows easy adjustment to get your phone positioned just right. Arm is 3.69" long and works with any 1" RAM ball.
Just returned from a 3k mile trip without any problems and this Ram arm worked as it should. I had a Ram arm for a trip last year that failed at 2.5k miles, threw it in the trash. Hopefully this arm will hold up for a few years.