The excluder works due to the Queen being larger than a normal worker bee, cannot pass through the slots, thus preventing HRH from laying eggs in the honey supers.
It is normally only used during the honey season (spring/summer) and should be removed during the autumn and winter months so the bees are able to group together to keep warm.
The Apimaye Queen Excluders include clever built-in spacers to ensure the correct bee space is retained between the frame tops and the excluder, thus minimizing burr comb construction.
