Several large pieces of foam. These used to be the seats/bed in my campervan. Two are rectangular:
108×45cm
108×55cm
There is also a large irregular piece, largest dimensions 136×90cm, but with three corners removed.
Thickness around 10cm.
I'm not expecting anyone to want the covers, but I'm leaving them on for now to protect the foam.
Large pieces of foam (New Hinksey OX1)
This offer has been gifted to someone and is no longer available.