It’s empty in here!
I really advise choosing this net for a balcony. Really good color - seems unvisible and also good looking. Cat feels comfortable and you also. Qualitative, easy setup. Don't disturb for your exterior look.
I have had the roll for 2 years, in 2 different flats, and have never had any issues with it.
Have used this to cover my courtyard with to allow my cats to securely go outside. It was very easy to put up and excellent quality for excellent price. Me and kitty cats are very happy.