With the Magnetic Pop-Up Pet Door 2.0, pets can come and go as they please. Complete with a magnetic base, this unique pet door is designed to work with sliding glass doors and screens. The Pop-Up Pet Door 2.0 expands in seconds and installs easily. Simply unfold the ultra-lightweight panels and place it in the doorway where it stays secured with magnets. At the bottom is a swinging plastic door for your dog or cat (or any other pet!) to enter and exit. At the top are hard panels to block any air from coming in or going out. And, because it remains in place with magnets, humans can continue to use the sliding glass or screen door as normal. When you’re heading out, you can effortlessly remove the Pop-Up Pet Door 2.0 and fold it away for total security. With an expandable frame, this innovative pet door fits just about any entryway. Plus, it also comes in five sizes to suit pets from small kittens to Great Danes.