Pack of 8 Boy or Girl Gender Reveal 12″ Latex Balloons. 4 blue and 4 pink balloons – 12″ each. These balloons feature latex printed with a “Boy or Girl” headline. These balloons will make your baby shower party more fun and unforgettable. These balloons are made of good quality latex. You can combine these balloons to create a beautiful balloon arch and balloon bouquets.