it depends what your using, be more specific to use
First Class Mail is delivered in 3 to 5 days.
They are right next to each other, separated by the East River. So it takes only minutes to get from Manhattan to Brooklyn, or vice versa, over any of the bridges and tunnels that span the East River...
First class mail is delivered in 3 to 5 days
First Class Mail is delivered in three to five days.