2 long, narrow offcuts of rigid polyurethane insulation board:
100mm thick board x 70mm wide x 2.2m long
50mm board x 200mm wide x 2.4m long
Weird size and shape but someone might have a use for gap-filling or whatever, before they sadly go to the recycling centre (which probably can't recycle them anyway).
Insulation offcuts (Llanbister)
This offer has been gifted to someone and is no longer available.