Just how sturdy flexariums are?

[Kioka]

I am thinking of buying a flexarium for my Crested Geckos. I will cover the sides with plastic to hold the humidity in, with a lot of foliages and use a substrate that hold humidity as well.

My only question is... how sturdy are they when it come to cats?

 

[varanio]

save your money and get a clear rubbermaid tub, cheap and super effective

 

[davo]

not sturdy for cats lol.
Also if they are the ones i'm thinking with, the zips tend to break.