Got this for our 38 yo Macaw that we have had since 6mos.  This cage is huge! Very well made and goes together fairly easy with 2 people.  The wheels seem HD as does the door.  It is tall may not go though some doors.  even comes with touch up paint .  There are no locks on the wheels which may have been a good idea because its size.  It came in 2 large boxes one was perfect, the heavy one with most of the cage in it was beat to heck and barely held the cage in place.  The top  piece has been bent out of shape we will have to re-bend it today it any problem will re-post.  This was a shipping issue with Fed Ex and not the maker the cage had been pack well with lot of wire ties to hold it all together.  All and all a great buy for a heavy  home for Harley who up until 2 years ago was a boy but started laying eggs at 36