I bought this pen to use in the kitchen to separate my new Cairn Puppy from my 2 year old westie. It was fine in the beginning--east to set up--the door was great to have when having to clean up the pen and I was just able to climb over (I am 5 ft 4 In) My only issue were the black clips that were supposed to stabilize it somewhat. I found them hard to put on and as a result--the dogs were able to "push" the pen into different shapes even though I had the 2 ends secured to a crate.