Purchased two of the play pens. I brought a new cat into the house several months ago, and the NC does not get along with my existing cat. It was suggested to me that if I put the cats together in the same room but in a safe environment, such as the play pen, they might get used to one another, and be able to coexist in the house. I purchased the pens and put them together. It can be done by one person, but a second person is helpful. I also found the suggestion made by somemone else who reviewed this product that using twisty ties at the corners and anywhere the moving parts intersect is a real-l-l-y good idea. There is enough room for feeding bowls and a litter box. So far the cats are doing better and the pens are easy to clean and to maneuver.