Cat-face shpe metal frame solid and beautiful Removable plush mattress easy to machine wash Besides it saves valuable interior space Movable suction cups are applicable to glass windows with a minimum width of 45cm allowing kittens of different sizes to stand on the bottom layer and climb easily It can be installed on any smooth surface in seconds without effort without tools Tip: before installation Make sure the suction cup surface is dry and the window surface is clean Single nut suction cups can hold up to 10-15KG in weight a safe and worry-free cat bed Can be installed at the top window Hammock provides your cat with an elevated position Sleep peacefully on it enjoy the sun time and nature what a good day Even in winter it will be perfect with a warm bed in winter