If your pet door is showing signs of wear and tear, a new PetSafe® Classic Replacement Flap could help make it look brand new. This soft, tinted flap has a magnetic closure to help keep your home protected from the outdoors and replacing it is a quick and easy installation project. The only tool you need is a screwdriver. Dimensions for the small size flap are 8 in x 11 in. It includes 4 holes at the top of the flap for adjustment. This This replacement flap fits the following PetSafe® doors: Extreme Weather Pet Door, Wall Entry Pet Door, Sliding Glass Pet Door, Freedom Patio Panel Door, Freedom Aluminum Pet Door and Plastic Pet Door. Trust PetSafe® to help keep your pet healthy, safe and happy.