A cat door is a small opening or flap installed in a door, wall, or window that allows cats to enter or exit a house or other enclosed area on their own. The flap usually has a flexible or rigid panel that swings inward or outward when the cat pushes through it, and then swings back into place to keep out insects, drafts, or other animals.
10 Best Cat Doors in 2023 [Easy to install]
