Part of our Poly National Range.   Totally compatible with both our wooden National hives and Poly National hive components, the only combination is that a wooden roof will not fit over a poly brood box or super.    Use your existing hive parts and take advantage of the polystyrene benefits:

It's made from a very high density material, 100g/litre - up to 3 times stronger than the type used for packaging.
It's lightweight and durable.
Its insulation properties also makes it ideal as less bees are required to maintain the heat required for effective brood rearing, helps improve overwintering and early Spring buildup.

A Super for National hives.  Complete with metal frame runners.    Can be used on our poly National hive or our wooden National hives.
All our Poly Hives are made in the UK