Fasteners of this type I knew from Garmin, but the AmazonBasics model has a distinct advantage: The competitive price. Here you can get the same quality at half the price. Whether Navi, phone or whatever else you can stick to the windshield, the non-slip pad provides excellent support. The fine adjustment is easier than with a disc holder, you can turn the way you would like to have it the bag easily. Anyone who has ever tried to stick his navigation system on a winter morning on the fogged and ice cold from the inside wheel will appreciate the pillow especially. Here think of anything perceived 1000 now and then, before it stops. As long as the vehicle has not a very rugged dashboard, found definitely a place where the driver's view is not affected too much. The space for mounting the actual suction cup is generously sized, and so also the biggest sucker can be securely fastened. After reaching his goal, you can let the pillow will disappear together with the firmly sucked unit in the glove compartment or trunk light, and the potential Navidieb sees no telltale holder on the disc - and no ugly traces of suckers.
Even under heavy lateral acceleration remains everything where you want it to. Except, perhaps, you overdo it with the motto: Good drivers have the fly rests on the side windows. "(Walter Röhrl)
Conclusion: Ingeniously simple and non-slip bracket.