LESTP Pet Dog Cat Screen Door, Pet Screen Door Protector for Sliding Door, Automatic Lock/Lockable?Sliding Screen Dog Door with Magnetic Flap for Exterior Doors (Large)

By Brand : LETSP

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Note: 1. Remove your screen door and lay it down on a flat, hard surface. Separate the frames of the pet door. Place them on opposite sides of the screen, preferably in a lower corner. 2. Align pins and hold tightly into the frames. Snap them by tapping or with a hammer whichever would make it totally together. Tighten the screws. 3. Using a knife, cut off the screen follow the dog/cat door. 4. Bend the Inner door, and put it in.