The Naval History and Heritage Command describe Streamers as the following
All Battle Streamers are made to military specifications (2 3/4" width x 3' length).
NOTE: Numerals are embroidered with scarlet red thread.
To date, 36 Battle Streamers with 30 Silver Stars and 41 Bronze Stars have been approved to commemorate the wars and combat actions of the U.S. Navy during its proud history. These symbolize more than 200 campaigns and major battles and the many unit citations and commendations, which have been approved. Silver and Bronze Stars are used on streamers to denote engagements of a campaign and numerals on unit award streamers to denote total number approved. Silver Stars are equal to five Bronze Stars.
Authorized Battle Streamers for the US Navy MIL-DTL-14650/3E