- The big base board is made of high quality chipboard to secure the stability of the entire cat tree, even your cats are overactive. 2. This cat activity centre is made of safe and environment-friendly materials. The reinforced cat scratching posts are wrapped with natural sisal rope all over the surface to allow nail scratching and promote exercising, cat jungle gym. This cat climbing tree is the perfect spot for your cats to jump around. 3. The Cat Arch is made of durable plastic bristles for massaging and self-grooming, designed for reducing shedding and keeping your house hair free. The cat furniture is equipped with 3 plush rimmed perches to allow your lovely cats can enjoy the sunbath in a comfortable position at the same time; the spacious cat house condo allows your cat to lounge in a private space quietly. 4. The multi-level design allows your cats to freely jump, climb and explore around their cat tower; Easy to assemble with included tools and instructions. 5.