Best for apartments or rental homes. Choose between 2 size patio panels to fit your sliding glass door track: adjustable up to 80 11/16 in or 96 in. Lock your human door with the included latch kit. Includes a closing panel to control your pet’s access. 1-piece patio panel for quick installation. Easily installs without cutting into a door or wall. Energy-efficient pet door with weather resistant aluminum, shatter resistant tempered glass and a magnetic closure on the pet flap. For pets up to 130 lb. Flap opening is 10 1/4 in W X 16 3/8 in H. PetSafe 15-3/4-in x 85-1/4-in White Aluminum Large Dog/Cat Door for Sliding Door | PPA11-13141