Play pen (Lawrenceville)

Small playpen for my geriatric (~20 years old) Maltese to stay safe in during the day. He has back issues and can’t jump up and down anymore so I want to make sure he’s safe while I’m gone. Will travel. Pack and plays would work, really anything that would keep him contained. He can’t jump over things anymore nor does he want to so height isn’t an issue. Thank you so much!!!