How would the outdoor cat tree poles be fixed in an apartment balcony?

With all Outdoor Freestyle Cat Tree poles you will receive two types of connectors. If you have a run with a completely flat roof, you should use the straight connector that is packed with the pole itself. If you're fastening the pole to an angled ceiling or to a meshed run, like the Omlet Catio, you should use the separately packed Outdoor Cat Run Roof Connector Kit instead. The fixings pack includes 5 wood screws, 5 wall plugs and 5 plasterboard plugs, so you can fix the pole to a wooden, solid masonry or plasterboard wall/ceiling.