Sisal natural hard material, perfect protection for your furniture and wallpaper from damage Super strong construction, balanced design, strong base, cats can easily and safely ride on this cat tree. Featuring scratching posts wrapped with durable natural sisal cord, this cat tower is perfect for your cats to sharpen their claws and save your furniture from scratching and digging. This cat climbing frame can fully release the cat’s activities. As they become more and more interesting, cat climbing frames can be used for biting and scratching, which should be like that, not your bad furniture. Suitable for indoor living rooms, bedrooms, pet balconies, family care centers, etc., to prevent sofas and other furniture from being scratched by cats.