Large Dog Door: Designed for medium pets with a width of up to 11 inches. Adjustable height from 91.37" to 96". Weatherproof Strip: Comes with three types of strips to provide superior insulation, maintaining your home's energy efficiency and comfort. Security Lock: Includes a latch lock to secure your sliding door with the pet door, ensuring your home stays safe while preventing drafts. Durable Aluminum Frame: Heavy-duty aluminum construction ensures the door withstands regular use and exposure to the elements, providing durability and reliability. Free Pet Access: Give your pet the freedom to go outside anytime, saving you time and effort.