Aquarius: Eccentric Intellectual And Rebellious AF A perfect card for sending a birthday wish to the Aquarius people in your life. Aquarius celebrates birthdays January 21st - February 19th. • Measures 4 x 5.5 inches • Printed on acid and lignin free white card stock (A2) folded • Brown Kraft envelope • Blank inside ready for you to write a personal message. • Packaged in a plastic protective sleeve • Created by V. Starling for Honest AF Cards.