Inner cover provides extra ventilation and fresh air to the hive, as well as extra layer of insulation and protection when placed under outer cover. Prevents outer cover from being propolized and stuck to hive body. Made of 1 2 plywood with tongue and groove framing. Fits on all miller little giant hives. can be used with beehive bee escape to easily remove bees from supers at honey harvesting time. Outer cover is made of durable wood with a weather resistant aluminum covering. Fits securely on 10-frame hive. Oversized to provide a telescoping feature, providing the hive with extra protection from elements. Slides front to back for ventilation to the hive. Can be painted or left natural. Perfect for building a hive, or as a replacement part for 10-frame complete beehive and 10-frame beginner hive kit.