Introducing the PetSafe Wall Entry Telescoping Pet Door, specially designed for medium-sized dogs. Made with durable aluminum material, this pet door provides easy access for your furry friend to come and go as they please. It comes with a telescoping tunnel that allows for easy installation on walls, providing your pet with a secure entryway. Please note that this product contains chemicals such as lead and nickel, which are known to the state of California to cause cancer and reproductive harm. However, rest assured that this pet door is safe for your pet to use and is guaranteed to make their life easier. Get your hands on the PetSafe Wall Entry Telescoping Pet Door now and give your furry friend the freedom they deserve!