Birthday Bulletin Board Banner Display. Print these cute banner flags out for your birthday bulletin board where you can write the child's name and birthday on the flag to make a fun and cute display! Each month is themed out. Save and laminate to re-use or re-print each year! Each banner measures about 10" x 7.5" and print 1 per page for each month. Comes with circular letters that say Happy Birthday! Each letter is 5" each and prints 2 per page on regular paper. Laminate and use dry erase!