I x large sheet of 5mm clear acrylic - used for cold weather double glazing, now no longer needed.
101.3 x 152.6 cm. It has 8 pre-drilled 3mm holes; one at each corner and one half way along each side.
Not indestructible, but a lot less vulnerable to breaking than glass.
You will need either a van, or a car with a fairly spacious boot - or two people to carry it home.
I'm in Islingword Street, near the Dover Castle.
William
Large sheet of 5mm acrylic (Hanover BN2)
This offer has been gifted to someone and is no longer available.