The Ultimate Hive Cover is a self-ventilating, insulated telescoping 10-frame cover. Made from recycled material, no assembly or painting required. Techno polymer construction will not rot. Double wall construction with dead air zone insulates the hive, cooler in summer and warmer in winter. Passive ventilation system improves airflow and eliminates moisture in the hive. Drip edge keeps hive and components dry for longer life. Fits all wood 10-frame equipment.