Why have an inner cover? It its basic level, the inner cover enables the telescoping easy removal of the outer (telescoping cover), but it does much more. This inner cover provides plenty of room for the bees to maneuver above the frames and enough room on the top side to allow for emergency feeding of fondant, Drivert or pollen patty. The under side is textured to encourage propolis production. Presence of Propolis in the hive has been shown to improve the hygiene of the hive.
The frame of this inner cover is glued along its edges and then stapled, giving it excellent mechanical strength.