Evelots Window Mounted Cat Bed, Window Kitty Perch, Strong & Durable, Beige Makes a perfect perch for your cat to watch outside birds and enjoy basking in the sunlight. When setting up please be sure to wash and dry the surface prior to installing the suctions cups. Apply firm pressure to the suction cups making sure all the air is depressed from the cup for the most secure application. Product measures approximately 11.5"L by 22"W when constructed. Installs in seconds to glass windows and doors and features industrial strength suction cups that hold up to an amazing 25 pounds. Provides your cat a front row view of nature, weather, people and more without taking up valuable floor space.