Feature: 1. Plastic Material: The chicken coop door is made of premium plastic materials which is safe and durable, lightweight and easy to use without causing harm to pet. 2. Light Sense: The chicken coop doors open and close automatically at dawn or dusk, automatic induction with light sensing function. 3. Easy Installation: No complex wiring, with mounting screw holes and comes with 8 screws, simple operation, very convenient to install. 4. Protect Your Poultry: This auto chicken coop door opener is safer and stronger enough to ward off other large animals and keep your poultry safe. 5. Simple Operation: One key to start or close the coop door, really simple to operate. Chicken coop accessories that every poultry farmers need. Specification: Item Type: Automatic Chicken Coop Door Product Material: Plastic Product Color: Blue Weight: Approx. 562g/19.8oz Product Size: Approx. 35x24cm/13.8x9.4in Size After Door Opening: Approx. 25x20cm/9.8x7.9in Category: Smart Device Applicable Poultry: Chicken, Duck, Goose Battery: AA Dry Battery x 3 (Shipped Without Battery). Package List: 1 x Automatic Chicken Coop Door8 x Screws 1 x Manual Note: 1. New and old batteries shall not be mixed for use. Before inserting the battery, make sure to insert it with the correct polarity (positive "+" and negative "‑"). Remove the battery from the device and handle it safely.2. If the device is idle for a long time, the battery should be removed. The power terminal must not be short circuited.