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[Best Choice]: Wulikeke Cat Door Holder Latch-Because it is simple, convenient, and it works! Skip the hassle of a pet gate with cat door. Don’t cut a permanent hole to install an interior cat door. New Cat Doors is the perfect solution to dog proof litter box and dog proof cat feeder.
[Fits Most Knobs and Handles]: Pet latch safely fits most knobs and handles, Fits doors 4.5″ thick and allows your cat to pass through. Put the cat latch on the door frame and you can block the dog from getting in or the kid from getting in.