This pet pen is just ok, nothing spectacular. The bars are easily bendable and I wouldn't say it's the sturdiest. If you have a bigger dog like a german shepherd, it could probably knock it down. It works OK for our puppy golden retriever at the moment. We do not have a fence so this allows her off leash outside with a little freedom. It is kind of a hassel to move when I have to mow the lawn. I would recommend this for someone with a small dog like a yorkshire terrier. I do like that you can shape it to how you want, use it as an enclosure or like a fence, and that it has two doors.