Review on Budget-friendly 360 Rotating Car Windshield Mount Holder: iPhone, Galaxy, Smartphones & more! by Mike Rubenstein

The suction power of this holder is fantastic. It holds my iPhone firmly and securely, this mechanism is also excellent. My only complaint, and I have mine on my windshield, is that the mount "sags" and "sags" while driving. I haven't played with it, can it be tightened? And I use it vertically, not horizontally. I have to take a closer look. For me it's just aesthetics.