The sturdy stainless steel queen excluder is intended to limit the movement of the queen. The queen excluder focuses the queen on laying her brood in the brood box and super. The queen excluder should be taken off the hive before temperatures fall below 50 degrees in the evening. The queen excluder also allows the beekeeper to more easily find the queen since she is limited in her movement within the hive. A must item for every beekeeper!