My cats are indoors only. I live in a small 2 bedroom condo and I don’t even let them out on my balcony because the railing is thin, they might jump on it. I also promised the Rescue House when I adopted them I wouldn’t let them outside. Sometimes I feel guilty for keeping them in prison…my small condo, I think they get bored sometimes and I am considering buying them a portable easy to fold up playpen so they can be on my balcony sometimes. Do you have any ideas? I am not able to build a cat enclosure. The condo rules are too strict.