Had any one got one of those, we went to our caravan dealer and brought two towing mirror, we said to him not sure that they will stay on, He said I will put them on your car and you will see how you get on with them we was gone for agood 20 minute and there was a very little vibration depent on the state of the road, other than that it was good, so we brought them, Have you got one of those and are you please with it? Trevor