Product Name: Updated Cat Self Arch Groomer and Massager, fixing by screws Size & Weight: Chassis size 14.96x11.81 inch, thickness about 0.39 inch; Brush size 13.78x11.81 inch, diameter 3.15 inch, Weight 1.6 lbs Product Material: PP + Height carpet cloth + Stainless Iron + Screws Product Features: 1. Updated cat arch groom is fixed by screws on the base, increase the stability 2. Helps stop shedding & scratching to keep your home hair-free. Designed for ALL-SEASON use 3. Arched door using fiber wool, soft, will not stab the cat 4. Durable bristles: Designed to reduce loose, shedding hair while stimulating your cat with a massage 5. Super Sturdy: Carpet base is perfect for scratching and uses density board quality 6. Catnip: To use either sprinkle catnip on carpet or turn base upside down and place catnip in center hole Installation method: Product Name: Updated Cat SeInsert the metal rod into the two ends of the base and use screws to rotate and fix Includes Carpet base with rubber feet; Bristle arch; Bag of catnip and two screws