[silver-S]

I was vacuuming the interior yesterday and found one of the fingers from the windscreen lying in the floor. Apparently, the plastic gets brittle and these things snap off easily, that is, with no provocation other than normal car vibration. Luckily, I have them securely connected with zip ties.

I would say, since you have to use zip ties anyway, buy used ones with broken fingers cheap, install them, and don't worry about it.