KITTY WALK 024KW-PH500 Kittywalk Outdoor Penthouse Vertical outdoor enclosure that allows your cat or kitten to relax in the fresh air, watch the birds, exercise and safely enjoy the sunshine in the great outdoors. 5 feet high, 2 feet wide, 18" deep means twenty cubic feet of roomy outdoor freedom Included weatherproof hammocks keep up to three kitties comfortableIncluded weatherproof hammocks keep up to three kitties comfortable Easy set-up, erects in just minutes