This device has good suction and is very stable, work great when filming inside a car

I bought this to use the 360Fly camera in an an airplane, attached to the windshield. I used it on my last flight and it worked great - it held very securely - once I realized the correct way to attach it.

Great for slapping this on the car and rolling around

I've driven around for several days with this attached. Works as advertised and hasn't had any trouble at all with becoming even slightly loose. It holds tight, and there's no shake in the video at all.

This is a great mount. It does NOT work with the 4k that I have, but for the other gadgets I have that take the same type of non screw on Mount it's awesome.