Bought 3 of these a while back to use in emergencies or for transporting my 3 cockatoos to the vet.  Am using them now as we had to evacuate due to Hurricane Irma.  They are sturdy and ok for my 2 smaller cockatoos but my umbrella is cramped.  We are on day 4 and it's getting to be too long for such small cages for big birds.  They do serve their purpose very well, but not for long term use.