Make your window fun for cats: Cats love to stay by the window, to get more sunshine, to get more views. Natural material: The main materials are natural wood and natural sisal, good and safe to your cats. Safe: Big size suction cups, each hold up more than 10 Lbs weight. Always wet the cups before installation. Easy to build: It's window mounted. No need to find the wall studs, no need to damage your wall, no need extra tools. You can install it on your window in minutes. Package Including: 1*Cat Window Perch+2*Cat Window Steps