The Junglecatt Cat Window Perch is a unique design which allows your cat to enjoy the comfort of indoors with the view of the outside world. The perch is attached to the window with extra strong suction cups. The frame is made of strong and durable plastic pipe and the bed with weather resistant easy to was woven fabric. The Junglecatt Cat Window Seat can be used indoors or outside. It is advised to lay a blanket to make it even more comfortable. Window should be at least 27.5 inches wide for the perch to fit well. Please measure window area before buying as does not fit small windows. WINDOW SEAT SUCTION CUPS: Step 1 Clean the surface where you are mounting the suction cups. Wash surfaces with a damp, clean cloth. Wash glass and mirrors with a window cleaner and dry thoroughly with a towel. Suctions cups will not stick to dirt or dust. Step 2 Rinse the back of the suction cup with warm water and remove any residual dust or dirt from the edges of the cup. Dry the cup thoroughly with a towel or allow it to air dry. Step 3 Wet the tip of your finger and rub your finger over the inside edge of the suction cup. The moisture helps the suction cup create a seal. Step 4 Hold the suction cup where you want to mount it, and press it against the surface. The center of the suction cup should indent inward toward the surface slightly. Hold the suction cup in place for 15 seconds. Step 5 Release the suction cup slowly. This allows the vacuum to build in the cup without breaking the seal.