Thank you for viewing. Manufacturer's HP https://www.surepetcare.com/en-gb/pet-doors/dualscan-microchip-cat-flap This product is a cat door with an electric unlocking function that detects the microchip embedded in your cat and allows only the designated cat to pass through. Brand: SureFlap Color: Brown Product Name: SureFlap Microchip Cat Flap / Cat Door Model Number: SUR001BR Included Items: All included. *Requires 4 AA batteries (sold separately). I used this product in combination with corrugated plastic to allow only one cat to pass through a cage in order to separate their meals in a multi-cat household. I am selling it now as it is no longer needed. I purchased it in August 2023 and stored it at home after using it for a few months. Although I purchased it new, as you can see in the photos, there are scratches on the outside of the main body's tube (the part that goes through the wall and is usually hidden from view) from the time of opening. I believe these are unavoidable manufacturing marks, so I would appreciate it if you could understand and accept this before purchasing. There are no other noticeable scratches or stains. The operation is also problem-free.