Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pet Play Pen

This is one of the best purchases I have made for my Havanese puppy. It's roomy, it folds down or breaks apart easy for travel and it's lightweight for moving around yet sturdy enough that my dog doesn't push it around. I put him in the pen instead of his crate when I need to do things around the house without him underfoot and he loves it! I also leave the door open during the day and he goes in there by himself for naps. I have recommeded this pen to 2 of my friends with new dogs and they love it as well! You can add extra panels if you want it larger but I think this is the perfect size for a small dog.