Modern water hyacinth scratching post with resistant layers The Trend Curacao scratching post will provide hours of pleasure for your cat thanks to its 5 complete layers. The scratching post is made of water hyacinth, a ultra-resistant material. The two toys attached to the scratching post invite your cat to let off steam. He can also relax on one of the soft, silky resting surfaces or take a nap around the house. Cats need scratching posts to groom their nails and mark their territory. The jute rope that surrounds the posts is natural and highly resistant, enabling the cat to remove the scaly top layer from its nails.