What sort of cage can I keep my rat in?

ehter cage should be just fine. if you plan on housing two you may want to get both for incase they either dontget along or need more space, rats do get to be about the size of a full grown rabbit or sometimes bigger, but to begin with they are rather small to make sure that ther is no way for them to squeeze thru the bars as mice and rats can become almot flat, these bars look close enough together that you should have no probllem :) i hope you enjoy you pet rats and have many happy memories with th.