1.Special Accessory Design， In order to maximize the cat's nature, the lower part of this cat scratching post is a Self-Grooming aid for cats, acting as a comfortable friction for them. The hardness of the brush has been adjusted through many experiments to ensure gentle massage and grooming without the pain of shedding and scratching the cat's skin, so that cats can use it with confidence.1 X 6" Inline Smart Controller Duct Fan 1 X 6" Carbon Filter 1 X Grey/Black 6-inch Flexible Ducting 3 X Stainless Steel Clamps 1 X Grow Room Glasses 2 X Lifting RopesVentilation Kit Inline Duct Fan Carbon FilterDesigned for indoor use - Neutral colors work well with existing decor in your home, ideal for any living room, bedroom, or home office2.Fashionable and Lovely，Breakthrough design limitations. This cat scratching post adopts a novel animal shape, with a lovely appearance and harmonious colors, which can adapt to a variety of decoration styles. 3.Easy to Assemble and Place，This cat scratching post has detailed installation instructions, you can follow the instructions included or the pictures and videos on this page to achieve a quick and easy installation. The reasonable space design allows this cat scratching post to appear in any corner of the home.4.Make Your Cats Happy: Spoil your cats with this scratching Post so they won't feel lonely when you are away, and let them play and relax in comfort