[EXCELLENT MATERIAL) - Product size: 11.8x12.6 . It is made of high-quality aluminum alloy material, which is not easy to bend or break and provides a long service time. The automatic coop door can help to stop the predator prying up the door and carrying away your chickens at night. (INFRARED INDUCTION DESIGN) - The coop door opener includes an infrared sensor and will automatically stop the door to protect your chicken from getting stuck, providing extra security for your poultry. It works at a low sound and will not disturb your family's sweet sleeping in the morning. [AUTOMATIC DOOR OPENER) - The automatic chicken coop door opener features an adjustable automatic light sensor, which will open the door at dawn and close it at dusk by sensing the change of sunlight. Two remote controls are sent for convenient & free control of the door by yourself. (EASY TO OPERATE) - This coop door requires no complicated wiring or cabling. You can attach the door opener and just plug and play to ensure your chickens get protected at night and prevent your chickens from fierce animals. [FOR VARIOUS USE) - The automatic chicken coop door opener is widely used outdoors and indoors and is suitable for all standard sized chicken breeds, hens, and ducks to provide safety protection