The PetFusion Ultimate Cat Window Climbing Perch is designed for cats who enjoy climbing, lounging, and connecting with the outside world. What cat doesn�t? It's part of their nature. It combines your cat's instinctive climbing and scratching behaviors with the required environmental enrichment. This is a safer alternative to potentially hazardous free-hanging window perches and hammocks restricting your cat's activity and natural scratching behaviors. Assembly is easy, taking an estimated total of 10-15 minutes. It includes three heavy-duty suction cups that can easily attach to any window in your home, along with a free-standing base for added support and peace of mind. The set features premium EO grade MDF, sisal posts, suction cups, a sleeping pad, and organic USA-grown catnip leaves to entice your cats.