Features: ?Waterproof and durable?: The automatic chicken coop door is made of PP plastic is IP44 waterproof and resistant to high and low temperatures. As it is in a waterproof housing it is very suitable for indoor and outdoor use. ?Automatic chicken coop door?: the size of the chicken door is 35 x 24 cm which is suitable for almost any chicken size and also ducks can easily pass through. ?Easy to use?: this automatic chicken door works with 3 AA batteries (not included). No complicated wiring easy to use and convenient to use. Specifications: Material: plastic Size: 35 x 24 x 3.7 cm Battery: 3 x AA batteries (not included) Magnet: motor contains magnetism Function: light sensitive liftable waterproof (IP44). Package contents: 1 x chicken coop door.