Those are pallet-size shipping containers. Do a search for "shipping dunnage" or "protective dunnage"

I used to have to haul those in a big truck..

Bonjour...

Very strange "coffins"... are you returned to this place to see if all seems normal ??? I'm sorry, I don't speak very well english.

I think these "things" are not normal and the place must be watching...

It's a good idear this video...

Thanks...

What an excellent job on the video posted in ATS thread. see what has been accompolished............................ALL OVER THE WEB!