This is a windscreen cover to protect against frost/ sun etc.
I used it on my old car which was a hatchback MPV, but it is too small for my newer SUV.
It is a thick foam with a metallic covering. It has an upper and lower elastic on one side.
It has a small slit near the bottom but this won't affect its use and just needs a bit of tape over it.
Car windscreen cover (Barrow-in-Furness LA14)
This offer has been gifted to someone and is no longer available.