Amazon is expanding its free two-hour delivery service from Whole Foods stores through Prime Now. It announced last week that the free two-hour delivery from Whole Foods stores for Prime members will be available in four new cities: Baltimore, Maryland; Boston, Massachusetts; Philadelphia, Pennsylvania; and Richmond, Virginia.

So far, Whole Foods delivery through Prime Now is available in a total of 14 metro areas across the country, with these new additions. More cities are expected to be added this year.