Received and tested!
The suction cup is its quality unlike another that I ordered and I have returned. For 10 euros more, I received the official GoPro suction cup, which is just the must. Starting with the packaging! Here a beautiful package that makes pro unlike the other I got in a little plastic bag ... It there's a lot of small accessories to be able to secure the pro go as we please. It there's even the possibility of the switcher to remove it faster. Qualitée of materials has nothing to do also. The one has the equipment and the strong plastic, robust and vices tight unlike the one I returned.
I tested the suction cup on highway at 110km / h and 130 km / h nothing moves. It absorbs shock humpback, suddenly the image on the screen is very fluid.
I recommend this sucker. It is better to pay 10 euros more expensive than to end up with a low-end product or 1st prize ...