We purchased this door to replace a same-brand door with a larger one to fit a new member of our family. We were disappointed to find that the design of the hinge, which had failed on the older door, was the same on the new door. And, although it seemed insignificant at the time, we noted that the door itself was a glass-transparent material on the new door and a translucent, milk-white material on the old door. This change of design, likely made because the transparent material is cheaper and not because it performs any better has the unanticipated consequence that two of our two cats shy away from and will no longer use the door. So, a change that would have enhanced the durability of the product has been ignored and a change to (probably) increase the profit on the product by a few pennies has given us new problems to deal with. Summary is: The door will perform as advertised, but... expect the screws at the top of the door to break the frame and drop the door so it will no longer work.