I bought this for my family's cat, but it won't use it, so I'm selling it. I purchased this as an outlet item, so there are some wrinkles here and there. Please understand this before purchasing. When the base is set up, it will be about 9.5cm tall. I think it won't slip if you attach the base with double-sided tape or something similar. See the 7th photo for the size. See the 9th photo and later for the actual product. There is no box. I will wrap it in bubble wrap and ship it.