Q&A (1)Q:How wide is it inside the arch ? A:Not sure of the exact size, but it’s big enough! My cat is a big boy!-17 pounds. He fits in it just fine. And he loves that thing to. Great Cat gift������������ (2)Q:What are the bristles made of? A:plastic feel almost like a Christmas tree (3)Q:How do you clean it? A: I use Bissell Steam Shot Hard-Surface Cleaner clean it. (4)Q:Where do you put the cat nip? A:on the base even on the scratcher post Advantages 1.Perfect for cats of all ages.puppy,Foldable, save space and easy to carry 2.Dog or Cat arch is a self-groomer, massager and toy all in one! 3.Base lets him freely scratch & stretch to keep your furniture safe from his claws. 4.This clever pet arch with durable bristles massages kitty while removing excess shedding hair. 5.Grooming arch was made with the best quality materials and with special attention to detail for best results. The construction of the arch is very strong and steady for maximum durability and stability. Description Features: It is an item of multi-purpose including cats groom,sctatch and play. The carpet base is super sturdy,it will not fall down when scratching. High-quality cat scratcher bristles gently remove loose and shedding hair while giving kitty a massage. Catnip sprinkled on carpet or at base can keep cats entertained for hours. Specification: Material: Carpet Cloth,PP,Stainless Iron Color: Black(brush) + Beige(carpet base) Dimension: Carpet base:350mm/13.7"(Diameter) Brush:350mm/13.7"(Height) Package includes: 1*Cat Scratching Arch Note: Please allow 1-2mm errors due to manual measurement. Due to the difference between different monitors, there are color differences, please take the real product as the standard.