Features:1.Withstands high and low temperatures: The automatic chicken coop door endures high and low temperatures, and so does the battery. Because the battery is in a waterproof casing, it can be outside in the cold or warm weather, and it will run for a year.2.Easy to install chicken coop door: This chicken coop opener is packaged safely and comes with accessory, not other tool needs.3.Timer setting: means that your door will work by itself when the sun is up and will go down when the sun goes down. If needed, you can set the timer for opening with the test button.4.Premium Material: Made of high quality material, durable and long lasting, not easy to break.5.100% Satisfaction: If you have any question, please feel free to contact us.We will try out best to help you.Notice:Please allow 1-3cm deviation due to manual measurementActual color may be slightly different from the image due to different monitor and light effectDescription:Material:Reusable PlasticBattery: 2x AA battery(not included and just for style B) Size:as shownincludes:1x Door(with accessory)