PetSafe Four Way Cat Flap Door White 8.25" x 7.5" x 2.75"
Give your cat access to her litter box even with a closed door. This durable, transparent cat flap fits any interior door that is 1" to 2" (2.5 cm - 5 cm) thick. The 4-way locking system gives you ultimate control of the kind of access you want your cat to have.
Features: High-impact polypropylene frame. Can be fully open. Can be fully locked. Cat can get out but not in. Cat can get in but not out. For pets up to 12 lbs (5.4 kg).