Thanks for that Bobs. In my 40 years of driving I think I'm aware of most of that stuff and a lot of the time the 6 of us or so that have nice cars do park next to each other. In that case I don't use my gizmo/s. Someone thought they actually draw attention to my car. What I've noticed is that the car is so low in profile you really don't see them until you are in the space next to it.
They are not pretty but so far they have worked for me and I just wanted to share them with those of you who flip out at a ding.

Pat