[Well-Made, Aluminum Alloy] - Attention ! ! ! We suggest using this environment above 32 (Above 0 ). automatic chicken coop door is made of professionally painted high-quality aluminum alloy,strong and enough to prevent the invasion of predators,and it has been tested during rainy,frosty weather. [Battery Powered, Easy to Use] - chicken coop door is powered by 3 x AA alkaline batteries,no worry about wiring or battery safety issue.Also,you can to work after fixed in the poultry house door area with attached screws. [Safety Protection Mechanism] - chicken coop door has the special case that the descending door squeezes onto the chicken all the way and causes damage: When our door is descending and squeezes onto the chicken's body, it will keep descending for a few seconds and lifting a bit then stop to wait for the chicken to pass through,a few moment later it will keep descending again and close the door. [LCD Screen Display] - You can always know the auto coop door settings (current time,open/close time,battery level) by checking the screen. When the power is low,the screen will remind you to replace the battery in time by flashing when you wake it up. As high-quality chicken coop accessory, it provides convenience for your raising chickens life! Power Supply:3 x AA batteries(Not included batteries) Colour:Black Material:aluminum alloy Size:320x244mm Package Contents: 1 * Automatic Chicken Coop Door Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.