This pen was easy to set up and it look great. We decorated the pen with small toy, water& food bowl and small toys just for our lil girl Bella in order to bering her extra comfort. It didn't take her a full hour before she learned how to jump this pen. She is a small breed,(dorkie) but she can get enough height to jump this pen...she only 6 pounds and barely passes my ankles when on all fours. Even with the top cover she cleverly learned how to jump out within 24 hours. Going to return ASAP...so sad.