My American Staffordshire Terrier is getting used to the stroller.  He is 67lbs and fits in it just fine except for when he is laying down.  His tail hangs out the end.  I bought this because he has joint injuries to his shoulders and he doesn't know when to slow down when I take him for a walk.  I am sure this stroller will be a big help.  It seems to be well made and it quite sturdy.