The Staywell PetSafe 740EF White Medium Dog Flap Pet Door is a brand new locking flap door made of plastic, perfect for keeping your pet safe and secure. With a manual lock mechanism and compatibility with Apple HomeKit, you can easily control access to your home and monitor your pet's movements. This pet door is designed for medium-sized dogs and offers free postage and packaging, making it a convenient and practical choice for pet owners looking to provide their furry friends with a secure and safe environment.