Our new rescue pup is a wee ball of furry energy. And while he's crate trained for overnight, we wanted something that would keep him safe, enclosed, and in the middle of all the family action. This pet pen is just what we needed! Sturdy and solid, it's heavy enough to keep our dog from knocking it over and getting into mischief, yet light enough for anyone in the family to move. Its collapsible construction makes storage easy, and when we're not using it as a playpen, we simply blockade a doorway with it as an impromptu safety gate. Some things to keep in mind: Our puppy is just 5 months old and weighs 7 lbs. His small size makes this playpen a veritable palace in terms of space when he's in it, which makes it paw-fect (hee) for small to medium puppies or senior dogs. A large breed puppy or accomplished jumper would have no trouble bowling this pen over to make a quick escape.