Fecedy Happy Birthday Balloons,Colorful,Party Decoration Supplies Color: Colorful Use for birthday, birthday party, wedding, baby shower,outdoor party, home party, celebrations and other on-site decoration Before blowing around 15.5 inch,After blowing around 13.5 inch.Due to hand measure, the size may have 1-4 cm error Due to Different Monitor, the color may have difference,Hope you can understand. Material: Aluminum Foil balloons Package includes: Happy Birthday - 13 letters Balloons