Give your furbabies the best of both worlds with the Aivituvin cat enclosure. Outdoor Play Space-The cat enclosure features a 69.3" high vertical climbing annex for your cat to explore! Large space to play, climb and bask in the sunshine. Sheltered house-It includes 3 modular shelves for your cats to lounge on. Your kitty can snuggle up, keep dry and safe from the elements inside the sheltered cat house with the waterproof asphalt top. Window Catio-Remove the upper back door (height from bottom to door:35.6") or remove some wire mesh, and you can connect the cage to your house so your pets can enter and exit freely. It's no surprise to see cats sleeping next to windows. Perfect Home-The spacious cage is ideal for cats, raccoons, squirrels, lizards, birds, and pigeons. Safety & Security-The cat enclosure is constructed with solid fir wood➕animal-friendly paint➕heavy-duty galvanized predator-proof welded wire (wire openings are only 1/2"x 1/2")➕robust quality hardware to prevent predators.