The 6-tier cat tree will bring better comfort for your cats.The cat tower consists of rubber wood pillars for higher strength & perfect stability. Also, its large base will enhance overall balance. At the top, there is a cozy perch that is easy to remove & offers a comfy sleeping area. Plus, the cat tree comes with 2 condos, each has a removable outside cover for easy cleaning. More, 2 platforms with dutch velvet mats are supplied for cats' observing. Finally, the cat tower has sisal scratching posts to release instincts. Since the cat activity center has anti-slip foot pads, it won't scratch the floor.